diff --git a/.travis.yml b/.travis.yml
index 2ce8731d6c8..aeeeef03cc8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -21,6 +21,7 @@ addons:
       - gfortran-4.9
       - liblapack-dev
       - clang-3.8
+      - shellcheck
 
 branches:
   only:
diff --git a/egs/wsj/s5/local/append_utterances.sh b/egs/wsj/s5/local/append_utterances.sh
index e94c19d5cb7..7daa5cff76c 100755
--- a/egs/wsj/s5/local/append_utterances.sh
+++ b/egs/wsj/s5/local/append_utterances.sh
@@ -7,10 +7,10 @@
 pad_silence=0.5
 # End configuration section.
 
-echo "$0 $@"
+echo "$0 $*"
 
 [ -f ./path.sh ] && . ./path.sh
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -ne 2 ]; then
   echo "Usage: $0 [options] <input-dir> <output-dir>"
@@ -27,8 +27,12 @@ for f in spk2gender spk2utt text utt2spk wav.scp; do
 done
 
 # Checks if sox is on the path.
-sox=`which sox`
-[ $? -ne 0 ] && "sox: command not found." && exit 1;
+#sox=`which sox`
+#[ $? -ne 0 ] && "sox: command not found." && exit 1;
+if ! sox=`which sox`; then
+  echo "sox: command not found";
+  exit 1;
+fi
 sph2pipe=$KALDI_ROOT/tools/sph2pipe_v2.5/sph2pipe
 [ ! -x $sph2pipe ] && "sph2pipe: command not found." && exit 1;
 
diff --git a/egs/wsj/s5/local/chain/compare_wer.sh b/egs/wsj/s5/local/chain/compare_wer.sh
index edfefad547f..a403af8b689 100755
--- a/egs/wsj/s5/local/chain/compare_wer.sh
+++ b/egs/wsj/s5/local/chain/compare_wer.sh
@@ -59,7 +59,7 @@ set_names() {
 
 
 echo -n "# System               "
-for x in $*; do   printf "% 10s" " $(basename $x)";   done
+for x in "$@"; do   printf "% 10s" " $(basename $x)";   done
 echo
 
 strings=(
@@ -74,7 +74,7 @@ strings=(
 
 for n in 0 1 2 3 4 5 6 7; do
    echo -n "${strings[$n]}"
-   for x in $*; do
+   for x in "$@"; do
      set_names $x  # sets $dirname and $epoch_infix
      decode_names=(tgpr_dev93 tg_dev93 bd_tgpr_dev93 bd_tgpr_dev93_fg tgpr_eval92 tg_eval92 bd_tgpr_eval92 bd_tgpr_eval92_fg)
 
@@ -84,7 +84,7 @@ for n in 0 1 2 3 4 5 6 7; do
    echo
    if $include_looped; then
      echo -n "#             [looped:]    "
-     for x in $*; do
+     for x in "$@"; do
        set_names $x  # sets $dirname and $epoch_infix
        wer=$(cat $dirname/decode_looped_${decode_names[$n]}/scoring_kaldi/best_wer | utils/best_wer.sh | awk '{print $2}')
        printf "% 10s" $wer
@@ -93,7 +93,7 @@ for n in 0 1 2 3 4 5 6 7; do
    fi
    if $include_online; then
      echo -n "#             [online:]    "
-     for x in $*; do
+     for x in "$@"; do
        set_names $x  # sets $dirname and $epoch_infix
        wer=$(cat ${dirname}_online/decode_${decode_names[$n]}/scoring_kaldi/best_wer | utils/best_wer.sh | awk '{print $2}')
        printf "% 10s" $wer
@@ -109,28 +109,28 @@ fi
 
 
 echo -n "# Final train prob     "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_train.final.log | grep -v xent | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final valid prob     "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_valid.final.log | grep -v xent | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final train prob (xent)"
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_train.final.log | grep -w xent | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final valid prob (xent)"
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_valid.final.log | grep -w xent | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
diff --git a/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1a.sh b/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1a.sh
index ceca428f5c1..3198f76b256 100755
--- a/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1a.sh
+++ b/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1a.sh
@@ -66,7 +66,7 @@ remove_egs=true
 test_online_decoding=false  # if true, it will run the last decoding stage.
 
 # End configuration section.
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 
 
 . ./cmd.sh
@@ -219,7 +219,7 @@ fi
 if [ $stage -le 16 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/chain/train.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1b.sh b/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1b.sh
index a3a747ed743..ec66f205741 100755
--- a/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1b.sh
+++ b/egs/wsj/s5/local/chain/tuning/run_cnn_tdnn_1b.sh
@@ -69,7 +69,7 @@ remove_egs=true
 test_online_decoding=false  # if true, it will run the last decoding stage.
 
 # End configuration section.
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 
 
 . ./cmd.sh
@@ -222,7 +222,7 @@ fi
 if [ $stage -le 16 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/chain/train.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/chain/tuning/run_tdnn_1a.sh b/egs/wsj/s5/local/chain/tuning/run_tdnn_1a.sh
index 10a9c608811..73d2cb096da 100755
--- a/egs/wsj/s5/local/chain/tuning/run_tdnn_1a.sh
+++ b/egs/wsj/s5/local/chain/tuning/run_tdnn_1a.sh
@@ -82,7 +82,7 @@ remove_egs=true
 test_online_decoding=false  # if true, it will run the last decoding stage.
 
 # End configuration section.
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 
 
 . ./cmd.sh
@@ -226,7 +226,7 @@ fi
 if [ $stage -le 16 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-$(date +'%m_%d_%H_%M')/s5/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-"$(date +'%m_%d_%H_%M')"/s5/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/chain/train.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/chain/tuning/run_tdnn_1b.sh b/egs/wsj/s5/local/chain/tuning/run_tdnn_1b.sh
index a2bb7e93388..efbd775f6af 100755
--- a/egs/wsj/s5/local/chain/tuning/run_tdnn_1b.sh
+++ b/egs/wsj/s5/local/chain/tuning/run_tdnn_1b.sh
@@ -57,7 +57,7 @@ remove_egs=true
 test_online_decoding=false  # if true, it will run the last decoding stage.
 
 # End configuration section.
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 
 
 . ./cmd.sh
@@ -201,7 +201,7 @@ fi
 if [ $stage -le 16 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-$(date +'%m_%d_%H_%M')/s5/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-"$(date +'%m_%d_%H_%M')"/s5/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/chain/train.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/chain/tuning/run_tdnn_lstm_1a.sh b/egs/wsj/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
index 4b752a55a4b..f4949d1e689 100755
--- a/egs/wsj/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
+++ b/egs/wsj/s5/local/chain/tuning/run_tdnn_lstm_1a.sh
@@ -80,7 +80,7 @@ remove_egs=true
 test_online_decoding=false  # if true, it will run the last decoding stage.
 
 # End configuration section.
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 
 
 . ./cmd.sh
@@ -225,7 +225,7 @@ fi
 if [ $stage -le 16 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/chain/train.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/cstr_wsj_data_prep.sh b/egs/wsj/s5/local/cstr_wsj_data_prep.sh
index 755edda9fed..0014e99be35 100755
--- a/egs/wsj/s5/local/cstr_wsj_data_prep.sh
+++ b/egs/wsj/s5/local/cstr_wsj_data_prep.sh
@@ -9,7 +9,7 @@ set -e
 # - Arnab Ghoshal, 29/05/12
 
 if [ $# -ne 1 ]; then
-  printf "\nUSAGE: %s <corpus-directory>\n\n" `basename $0`
+  printf "\nUSAGE: %s <corpus-directory>\n\n" "`basename $0`"
   echo "The argument should be a the top-level WSJ corpus directory."
   echo "It is assumed that there will be a 'wsj0' and a 'wsj1' subdirectory"
   echo "within the top-level corpus directory."
@@ -169,7 +169,7 @@ prune-lm --threshold=1e-7 $lmdir/lm_tg_5k.arpa.gz $lmdir/lm_tgpr_5k.arpa || exit
 gzip -f $lmdir/lm_tgpr_5k.arpa || exit 1;
 
 
-if [ ! -f wsj0-train-spkrinfo.txt ] || [ `cat wsj0-train-spkrinfo.txt | wc -l` -ne 134 ]; then
+if [ ! -f wsj0-train-spkrinfo.txt ] || [ "`cat wsj0-train-spkrinfo.txt | wc -l`" -ne 134 ]; then
   rm -f wsj0-train-spkrinfo.txt
   wget https://catalog.ldc.upenn.edu/docs/LDC93S6A/wsj0-train-spkrinfo.txt \
     || ( echo "Getting wsj0-train-spkrinfo.txt from backup location" && \
diff --git a/egs/wsj/s5/local/cstr_wsj_extend_dict.sh b/egs/wsj/s5/local/cstr_wsj_extend_dict.sh
index 8004db1d924..295d7660a39 100755
--- a/egs/wsj/s5/local/cstr_wsj_extend_dict.sh
+++ b/egs/wsj/s5/local/cstr_wsj_extend_dict.sh
@@ -14,7 +14,7 @@
 
 dict_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 if [ $# -ne 1 ]; then
@@ -57,7 +57,7 @@ echo "Getting training data [this should take at least a few seconds; if not, th
 # oov.counts below (before adding this rule).
 
 touch $dir/cleaned.gz
-if [ `du -m $dir/cleaned.gz | cut -f 1` -eq 73 ]; then
+if [ "`du -m $dir/cleaned.gz | cut -f 1`" -eq 73 ]; then
   echo "Not getting cleaned data in $dir/cleaned.gz again [already exists]";
 else
  gunzip -c $srcdir/lng_modl/lm_train/np_data/{87,88,89}/*.z \
@@ -126,7 +126,7 @@ reverse_dict.pl $dir/f/oovs > $dir/b/oovs
 # that it finds.
 for d in $dir/f $dir/b; do
  (
-   cd $d
+   cd $d || exit 1;
    cat dict | get_rules.pl 2>get_rules.log >rules
    get_rule_hierarchy.pl rules >hierarchy
    awk '{print $1}' dict | get_candidate_prons.pl rules dict | \
@@ -165,7 +165,7 @@ head $dir/oovlist.not_handled.counts
 echo "Count of OOVs we handled is `awk '{x+=$1} END{print x}' $dir/oovlist.handled.counts`"
 echo "Count of OOVs we couldn't handle is `awk '{x+=$1} END{print x}' $dir/oovlist.not_handled.counts`"
 echo "Count of OOVs we didn't handle due to low count is" \
-    `awk -v thresh=$mincount '{if ($1 < thresh) x+=$1; } END{print x;}' $dir/oov.counts`
+    "`awk -v thresh=$mincount '{if ($1 < thresh) x+=$1; } END{print x;}' $dir/oov.counts`"
 # The two files created above are for humans to look at, as diagnostics.
 
 cat <<EOF | cat - $dir/dict.cmu $dir/dict.oovs_merged | sort | uniq > $dir/lexicon.txt
diff --git a/egs/wsj/s5/local/nnet3/compare_wer.sh b/egs/wsj/s5/local/nnet3/compare_wer.sh
index 7a2fbd8a123..39f766eb6c5 100755
--- a/egs/wsj/s5/local/nnet3/compare_wer.sh
+++ b/egs/wsj/s5/local/nnet3/compare_wer.sh
@@ -59,7 +59,7 @@ set_names() {
 
 
 echo -n "# System               "
-for x in $*; do   printf "% 10s" " $(basename $x)";   done
+for x in "$@"; do   printf "% 10s" " $(basename $x)";   done
 echo
 
 strings=(
@@ -74,7 +74,7 @@ strings=(
 
 for n in 0 1 2 3 4 5 6 7; do
    echo -n "${strings[$n]}"
-   for x in $*; do
+   for x in "$@"; do
      set_names $x  # sets $dirname and $epoch_infix
      decode_names=(tgpr_dev93 tg_dev93 bd_tgpr_dev93 bd_tgpr_dev93_fg tgpr_eval92 tg_eval92 bd_tgpr_eval92 bd_tgpr_eval92_fg)
 
@@ -84,7 +84,7 @@ for n in 0 1 2 3 4 5 6 7; do
    echo
    if $include_looped; then
      echo -n "#             [looped:]    "
-     for x in $*; do
+     for x in "$@"; do
        set_names $x  # sets $dirname and $epoch_infix
        wer=$(cat $dirname/decode_looped_${decode_names[$n]}$epoch_infix/scoring_kaldi/best_wer | utils/best_wer.sh | awk '{print $2}')
        printf "% 10s" $wer
@@ -93,7 +93,7 @@ for n in 0 1 2 3 4 5 6 7; do
    fi
    if $include_online; then
      echo -n "#             [online:]    "
-     for x in $*; do
+     for x in "$@"; do
        set_names $x  # sets $dirname and $epoch_infix
        wer=$(cat ${dirname}_online/decode_${decode_names[$n]}$epoch_infix/scoring_kaldi/best_wer | utils/best_wer.sh | awk '{print $2}')
        printf "% 10s" $wer
@@ -109,28 +109,28 @@ fi
 
 
 echo -n "# Final train prob     "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_train.{final,combined}.log 2>/dev/null | grep log-like | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final valid prob     "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_valid.{final,combined}.log 2>/dev/null | grep log-like | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final train acc      "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_train.{final,combined}.log 2>/dev/null | grep accuracy | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
 echo
 
 echo -n "# Final valid acc      "
-for x in $*; do
+for x in "$@"; do
   prob=$(grep Overall $x/log/compute_prob_valid.{final,combined}.log 2>/dev/null | grep accuracy | awk '{printf("%.4f", $8)}')
   printf "% 10s" $prob
 done
diff --git a/egs/wsj/s5/local/nnet3/run_ivector_common.sh b/egs/wsj/s5/local/nnet3/run_ivector_common.sh
index eb63754d23f..fab444227b4 100755
--- a/egs/wsj/s5/local/nnet3/run_ivector_common.sh
+++ b/egs/wsj/s5/local/nnet3/run_ivector_common.sh
@@ -57,7 +57,7 @@ if [ $stage -le 2 ]; then
   # them overwrite each other.
   mfccdir=data/${train_set}_sp_hires/data
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $mfccdir/storage ]; then
-    utils/create_split_dir.pl /export/b0{5,6,7,8}/$USER/kaldi-data/egs/wsj-$(date +'%m_%d_%H_%M')/s5/$mfccdir/storage $mfccdir/storage
+    utils/create_split_dir.pl /export/b0{5,6,7,8}/$USER/kaldi-data/egs/wsj-"$(date +'%m_%d_%H_%M')"/s5/$mfccdir/storage $mfccdir/storage
   fi
 
   for datadir in ${train_set}_sp ${test_sets}; do
@@ -84,7 +84,7 @@ if [ $stage -le 3 ]; then
 
   # train a diagonal UBM using a subset of about a quarter of the data
   num_utts_total=$(wc -l <data/${train_set}_sp_hires/utt2spk)
-  num_utts=$[$num_utts_total/4]
+  num_utts=$((num_utts_total/4))
   utils/data/subset_data_dir.sh data/${train_set}_sp_hires \
       $num_utts ${temp_data_root}/${train_set}_sp_hires_subset
 
@@ -120,7 +120,7 @@ if [ $stage -le 5 ]; then
   # valid for the non-'max2' data; the utterance list is the same.
   ivectordir=exp/nnet3${nnet3_affix}/ivectors_${train_set}_sp_hires
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $ivectordir/storage ]; then
-    utils/create_split_dir.pl /export/b0{5,6,7,8}/$USER/kaldi-data/egs/wsj-$(date +'%m_%d_%H_%M')/s5/$ivectordir/storage $ivectordir/storage
+    utils/create_split_dir.pl /export/b0{5,6,7,8}/$USER/kaldi-data/egs/wsj-"$(date +'%m_%d_%H_%M')"/s5/$ivectordir/storage $ivectordir/storage
   fi
 
   # We now extract iVectors on the speed-perturbed training data .  With
diff --git a/egs/wsj/s5/local/nnet3/run_lstm.sh b/egs/wsj/s5/local/nnet3/run_lstm.sh
index d9af546b49b..dc8fb12450c 100755
--- a/egs/wsj/s5/local/nnet3/run_lstm.sh
+++ b/egs/wsj/s5/local/nnet3/run_lstm.sh
@@ -46,7 +46,7 @@ frames_per_chunk=
 
 #End configuration section
 
-echo "$0 $@" # Print the command line for logging
+echo "$0 $*" # Print the command line for logging
 
 . ./cmd.sh
 . ./path.sh
@@ -70,7 +70,7 @@ local/nnet3/run_ivector_common.sh --stage $stage || exit 1;
 if [ $stage -le 8 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-$(date +'%m_%d_%H_%M')/s5/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/wsj-"$(date +'%m_%d_%H_%M')"/s5/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/lstm/train.sh --stage $train_stage \
diff --git a/egs/wsj/s5/local/nnet3/run_lstm_discriminative.sh b/egs/wsj/s5/local/nnet3/run_lstm_discriminative.sh
index 7c34f4355b2..6ba97b7047a 100755
--- a/egs/wsj/s5/local/nnet3/run_lstm_discriminative.sh
+++ b/egs/wsj/s5/local/nnet3/run_lstm_discriminative.sh
@@ -119,8 +119,8 @@ fi
 model_left_context=`nnet3-am-info $srcdir/final.mdl | grep "left-context:" | awk '{print $2}'`
 model_right_context=`nnet3-am-info $srcdir/final.mdl | grep "right-context:" | awk '{print $2}'`
 
-left_context=$[model_left_context + extra_left_context]
-right_context=$[model_right_context + extra_right_context]
+left_context=$((model_left_context + extra_left_context))
+right_context=$((model_right_context + extra_right_context))
 
 frame_subsampling_opt=
 if [ -f $srcdir/frame_subsampling_factor ]; then
@@ -135,7 +135,7 @@ if [ -z "$degs_dir" ]; then
   if [ $stage -le 3 ]; then
     if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d ${srcdir}_degs/storage ]; then
       utils/create_split_dir.pl \
-        /export/b0{1,2,12,13}/$USER/kaldi-data/egs/swbd-$(date +'%m_%d_%H_%M')/s5/${srcdir}_degs/storage ${srcdir}_degs/storage
+        /export/b0{1,2,12,13}/$USER/kaldi-data/egs/swbd-"$(date +'%m_%d_%H_%M')"/s5/${srcdir}_degs/storage ${srcdir}_degs/storage
     fi
     # have a higher maximum num-jobs if
     if [ -d ${srcdir}_degs/storage ]; then max_jobs=10; else max_jobs=5; fi
diff --git a/egs/wsj/s5/local/nnet3/run_tdnn_discriminative.sh b/egs/wsj/s5/local/nnet3/run_tdnn_discriminative.sh
index dc6dd9bf9d4..edba7071a88 100755
--- a/egs/wsj/s5/local/nnet3/run_tdnn_discriminative.sh
+++ b/egs/wsj/s5/local/nnet3/run_tdnn_discriminative.sh
@@ -100,8 +100,8 @@ fi
 model_left_context=`nnet3-am-info $srcdir/final.mdl | grep "left-context:" | awk '{print $2}'`
 model_right_context=`nnet3-am-info $srcdir/final.mdl | grep "right-context:" | awk '{print $2}'`
 
-left_context=$[model_left_context + extra_left_context]
-right_context=$[model_right_context + extra_right_context]
+left_context=$((model_left_context + extra_left_context))
+right_context=$((model_right_context + extra_right_context))
 
 frame_subsampling_opt=
 if [ -f $srcdir/frame_subsampling_factor ]; then
@@ -116,7 +116,7 @@ if [ -z "$degs_dir" ]; then
   if [ $stage -le 3 ]; then
     if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d ${srcdir}_degs/storage ]; then
       utils/create_split_dir.pl \
-        /export/b0{1,2,12,13}/$USER/kaldi-data/egs/swbd-$(date +'%m_%d_%H_%M')/s5/${srcdir}_degs/storage ${srcdir}_degs/storage
+        /export/b0{1,2,12,13}/$USER/kaldi-data/egs/swbd-"$(date +'%m_%d_%H_%M')"/s5/${srcdir}_degs/storage ${srcdir}_degs/storage
     fi
     # have a higher maximum num-jobs if
     if [ -d ${srcdir}_degs/storage ]; then max_jobs=10; else max_jobs=5; fi
diff --git a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1a.sh b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1a.sh
index 078719b1114..0cfd57ea2bf 100755
--- a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1a.sh
+++ b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1a.sh
@@ -105,7 +105,7 @@ fi
 if [ $stage -le 13 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/train_dnn.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1b.sh b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1b.sh
index 61223b8a135..de723de381e 100755
--- a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1b.sh
+++ b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_1b.sh
@@ -111,7 +111,7 @@ fi
 if [ $stage -le 13 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/train_dnn.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a.sh b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a.sh
index 6369fdc3fed..87de7b9773b 100755
--- a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a.sh
+++ b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a.sh
@@ -151,7 +151,7 @@ fi
 if [ $stage -le 13 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/train_rnn.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a_disc.sh b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a_disc.sh
index 6b1f98f04e7..2215a74c436 100755
--- a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a_disc.sh
+++ b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_1a_disc.sh
@@ -115,7 +115,7 @@ if [ -z "$degs_dir" ]; then
   if [ $stage -le 2 ]; then
     if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d ${srcdir}_degs/storage ]; then
       utils/create_split_dir.pl \
-        /export/b{09,10,11,12}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/${srcdir}_degs/storage ${srcdir}_degs/storage
+        /export/b{09,10,11,12}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/${srcdir}_degs/storage ${srcdir}_degs/storage
     fi
     if [ -d ${srcdir}_degs/storage ]; then max_copy_jobs=10; else max_copy_jobs=5; fi
 
diff --git a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_lfr_1a.sh b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_lfr_1a.sh
index f2a4ed37ae5..04bf1f96f43 100755
--- a/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_lfr_1a.sh
+++ b/egs/wsj/s5/local/nnet3/tuning/run_tdnn_lstm_lfr_1a.sh
@@ -173,7 +173,7 @@ fi
 if [ $stage -le 15 ]; then
   if [[ $(hostname -f) == *.clsp.jhu.edu ]] && [ ! -d $dir/egs/storage ]; then
     utils/create_split_dir.pl \
-     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-$(date +'%m_%d_%H_%M')/s5_r2/$dir/egs/storage $dir/egs/storage
+     /export/b0{3,4,5,6}/$USER/kaldi-data/egs/tedlium-"$(date +'%m_%d_%H_%M')"/s5_r2/$dir/egs/storage $dir/egs/storage
   fi
 
   steps/nnet3/train_rnn.py --stage=$train_stage \
diff --git a/egs/wsj/s5/local/run_basis_fmllr.sh b/egs/wsj/s5/local/run_basis_fmllr.sh
index db5207cc333..dca9de528f0 100755
--- a/egs/wsj/s5/local/run_basis_fmllr.sh
+++ b/egs/wsj/s5/local/run_basis_fmllr.sh
@@ -2,7 +2,7 @@
 
 lang_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 . cmd.sh
diff --git a/egs/wsj/s5/local/run_bnf_sgmm.sh b/egs/wsj/s5/local/run_bnf_sgmm.sh
index 8e2aadf214b..50e070bd21f 100644
--- a/egs/wsj/s5/local/run_bnf_sgmm.sh
+++ b/egs/wsj/s5/local/run_bnf_sgmm.sh
@@ -24,7 +24,7 @@ if [ ! -d exp_bnf ]; then
 fi
 
 echo ---------------------------------------------------------------------
-echo "Starting exp_bnf/tri5 on" `date`
+echo "Starting exp_bnf/tri5 on" "`date`"
 echo ---------------------------------------------------------------------
 if [ ! exp_bnf/tri5/.done -nt data_bnf/train/.done ]; then
   steps/train_lda_mllt.sh --splice-opts "--left-context=1 --right-context=1" \
@@ -34,7 +34,7 @@ if [ ! exp_bnf/tri5/.done -nt data_bnf/train/.done ]; then
 fi
 
 echo ---------------------------------------------------------------------
-echo "Starting exp_bnf/tri6 on" `date`
+echo "Starting exp_bnf/tri6 on" "`date`"
 echo ---------------------------------------------------------------------
 if [ ! exp_bnf/tri6/.done -nt exp_bnf/tri5/.done ]; then
   steps/train_sat.sh  --cmd "$train_cmd" \
@@ -42,7 +42,7 @@ if [ ! exp_bnf/tri6/.done -nt exp_bnf/tri5/.done ]; then
   touch exp_bnf/tri6/.done
 fi
 echo ---------------------------------------------------------------------
-echo "Decoding with SAT models on top of bottleneck features on" `date`
+echo "Decoding with SAT models on top of bottleneck features on" "`date`"
 echo ---------------------------------------------------------------------
 decode1=exp_bnf/tri6/decode_bd_tgpr_eval92
 decode2=exp_bnf/tri6/decode_bd_tgpr_dev93
@@ -60,7 +60,7 @@ steps/decode_fmllr_extra.sh --skip-scoring true --beam 10 --lattice-beam 4 \
   exp_bnf/tri6/graph_bd_tgpr data_bnf/dev93 ${decode2} |tee ${decode2}/decode.log
 
 echo ---------------------------------------------------------------------
-echo "Starting exp_bnf/ubm7 on" `date`
+echo "Starting exp_bnf/ubm7 on" "`date`"
 echo ---------------------------------------------------------------------
 if [ ! exp_bnf/ubm7/.done -nt exp_bnf/tri6/.done ]; then
   steps/train_ubm.sh \
@@ -70,10 +70,10 @@ fi
 
 if [ ! exp_bnf/sgmm7/.done -nt exp_bnf/ubm7/.done ]; then
   echo ---------------------------------------------------------------------
-  echo "Starting exp_bnf/sgmm7 on" `date`
+  echo "Starting exp_bnf/sgmm7 on" "`date`"
   echo ---------------------------------------------------------------------
   steps/train_sgmm2_group.sh \
-    "${sgmm_group_extra_opts[@]}"\
+    "${sgmm_group_extra_opts[*]}"\
     $numLeavesSGMM $bnf_num_gauss_sgmm data_bnf/train data/lang \
     exp_bnf/tri6 exp_bnf/ubm7/final.ubm exp_bnf/sgmm7
   touch exp_bnf/sgmm7/.done
@@ -83,7 +83,7 @@ fi
 decode1=exp_bnf/sgmm7/decode_bd_tgpr_eval92
 decode2=exp_bnf/sgmm7/decode_bd_tgpr_dev93
   echo ---------------------------------------------------------------------
-  echo "Spawning $decode1 and $decode2 on" `date`
+  echo "Spawning $decode1 and $decode2 on" "`date`"
   echo ---------------------------------------------------------------------
   utils/mkgraph.sh \
     data/lang_test_bd_tgpr exp_bnf/sgmm7 exp_bnf/sgmm7/graph_bd_tgpr |tee exp_bnf/sgmm7/mkgraph.log
@@ -100,7 +100,7 @@ decode2=exp_bnf/sgmm7/decode_bd_tgpr_dev93
 
 if [ ! exp_bnf/sgmm7_ali/.done -nt exp_bnf/sgmm7/.done ]; then
   echo ---------------------------------------------------------------------
-  echo "Starting exp_bnf/sgmm7_ali on" `date`
+  echo "Starting exp_bnf/sgmm7_ali on" "`date`"
   echo ---------------------------------------------------------------------
   steps/align_sgmm2.sh \
     --transform-dir exp_bnf/tri6 --nj 30 --use-graphs true \
@@ -110,7 +110,7 @@ fi
 
 if [ ! exp_bnf/sgmm7_denlats/.done -nt exp_bnf/sgmm7/.done ]; then
   echo ---------------------------------------------------------------------
-  echo "Starting exp_bnf/sgmm5_denlats on" `date`
+  echo "Starting exp_bnf/sgmm5_denlats on" "`date`"
   echo ---------------------------------------------------------------------
   steps/make_denlats_sgmm2.sh \
      "${sgmm_denlats_extra_opts[@]}" \
@@ -148,7 +148,7 @@ for iter in 1 2 3 4; do
 done
 
 echo ---------------------------------------------------------------------
-echo "Finished successfully on" `date`
+echo "Finished successfully on" "`date`"
 echo ---------------------------------------------------------------------
 
 #exit 1
diff --git a/egs/wsj/s5/local/run_vtln.sh b/egs/wsj/s5/local/run_vtln.sh
index 4312ff896aa..e654096a463 100755
--- a/egs/wsj/s5/local/run_vtln.sh
+++ b/egs/wsj/s5/local/run_vtln.sh
@@ -2,7 +2,7 @@
 
 lang_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 . cmd.sh
diff --git a/egs/wsj/s5/local/run_vtln2.sh b/egs/wsj/s5/local/run_vtln2.sh
index 1a94d74d612..f11516dd384 100755
--- a/egs/wsj/s5/local/run_vtln2.sh
+++ b/egs/wsj/s5/local/run_vtln2.sh
@@ -2,7 +2,7 @@
 
 lang_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 . cmd.sh
diff --git a/egs/wsj/s5/local/score_combine.sh b/egs/wsj/s5/local/score_combine.sh
index 65caab06ecc..df212db5599 100755
--- a/egs/wsj/s5/local/score_combine.sh
+++ b/egs/wsj/s5/local/score_combine.sh
@@ -29,7 +29,7 @@ max_lmwt=17
 lat_weights=
 #end configuration section.
 
-help_message="Usage: "$(basename $0)" [options] <data-dir> <graph-dir|lang-dir> <decode-dir1> <decode-dir2> [decode-dir3 ... ] <out-dir>
+help_message="Usage: $(basename $0) [options] <data-dir> <graph-dir|lang-dir> <decode-dir1> <decode-dir2> [decode-dir3 ... ] <out-dir>
 Options:
   --cmd (run.pl|queue.pl...)      # specify how to run the sub-processes.
   --min-lmwt INT                  # minumum LM-weight for lattice rescoring 
@@ -38,10 +38,10 @@ Options:
 ";
 
 [ -f ./path.sh ] && . ./path.sh
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -lt 5 ]; then
-  printf "$help_message\n";
+  printf "%s\n" "$help_message";
   exit 1;
 fi
 
@@ -49,7 +49,7 @@ data=$1
 graphdir=$2
 odir=${@: -1}  # last argument to the script
 shift 2;
-decode_dirs=( $@ )  # read the remaining arguments into an array
+decode_dirs=( "$@" )  # read the remaining arguments into an array
 unset decode_dirs[${#decode_dirs[@]}-1]  # 'pop' the last argument which is odir
 num_sys=${#decode_dirs[@]}  # number of systems to combine
 
@@ -60,7 +60,7 @@ symtab=$graphdir/words.txt
 
 mkdir -p $odir/log
 
-for i in `seq 0 $[num_sys-1]`; do
+for i in `seq 0 $((num_sys-1))`; do
   model=${decode_dirs[$i]}/../final.mdl  # model one level up from decode dir
   for f in $model ${decode_dirs[$i]}/lat.1.gz ; do
     [ ! -f $f ] && echo "$0: expecting file $f to exist" && exit 1;
@@ -75,13 +75,13 @@ cat $data/text | sed 's:<NOISE>::g' | sed 's:<SPOKEN_NOISE>::g' \
 
 if [ -z "$lat_weights" ]; then
   $cmd LMWT=$min_lmwt:$max_lmwt $odir/log/combine_lats.LMWT.log \
-    lattice-combine --inv-acoustic-scale=LMWT ${lats[@]} ark:- \| \
+    lattice-combine --inv-acoustic-scale=LMWT "${lats[@]}" ark:- \| \
     lattice-mbr-decode --word-symbol-table=$symtab ark:- \
     ark,t:$odir/scoring/LMWT.tra || exit 1;
 else
   $cmd LMWT=$min_lmwt:$max_lmwt $odir/log/combine_lats.LMWT.log \
     lattice-combine --inv-acoustic-scale=LMWT --lat-weights=$lat_weights \
-    ${lats[@]} ark:- \| \
+    "${lats[@]}" ark:- \| \
     lattice-mbr-decode --word-symbol-table=$symtab ark:- \
     ark,t:$odir/scoring/LMWT.tra || exit 1;
 fi
diff --git a/egs/wsj/s5/local/score_mbr.sh b/egs/wsj/s5/local/score_mbr.sh
index 04b84ccce5a..9d02869d91d 100755
--- a/egs/wsj/s5/local/score_mbr.sh
+++ b/egs/wsj/s5/local/score_mbr.sh
@@ -11,7 +11,7 @@ max_lmwt=17
 #end configuration section.
 
 [ -f ./path.sh ] && . ./path.sh
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -ne 3 ]; then
   echo "Usage: local/score_mbr.sh [--cmd (run.pl|queue.pl...)] <data-dir> <lang-dir|graph-dir> <decode-dir>"
diff --git a/egs/wsj/s5/local/wsj_data_prep.sh b/egs/wsj/s5/local/wsj_data_prep.sh
index 04f2f6390d8..fa7bc68bd22 100755
--- a/egs/wsj/s5/local/wsj_data_prep.sh
+++ b/egs/wsj/s5/local/wsj_data_prep.sh
@@ -36,15 +36,15 @@ if ! command -v prune-lm >/dev/null 2>&1 ; then
   exit 1
 fi
 
-cd $dir
+cd $dir || exit 1;
 # Make directory of links to the WSJ disks such as 11-13.1.  This relies on the command
 # line arguments being absolute pathnames.
 rm -r links/ 2>/dev/null
 mkdir links/
-ln -s $* links
+ln -s "$@" links
 
 # Do some basic checks that we have what we expected.
-if [ ! -d links/11-13.1 -o ! -d links/13-34.1 -o ! -d links/11-2.1 ]; then
+if [ ! -d links/11-13.1 ] || [ ! -d links/13-34.1 ] || [ ! -d links/11-2.1 ]; then
   echo "wsj_data_prep.sh: Spot check of command line arguments failed"
   echo "Command line arguments must be absolute pathnames to WSJ directories"
   echo "with names like 11-13.1."
@@ -56,7 +56,7 @@ fi
 # This version for SI-84
 
 cat links/11-13.1/wsj0/doc/indices/train/tr_s_wv1.ndx | \
- $local/ndx2flist.pl $* | sort | \
+ $local/ndx2flist.pl "$@" | sort | \
  grep -v -i 11-2.1/wsj0/si_tr_s/401 > train_si84.flist
 
 nl=`cat train_si84.flist | wc -l`
@@ -65,7 +65,7 @@ nl=`cat train_si84.flist | wc -l`
 # This version for SI-284
 cat links/13-34.1/wsj1/doc/indices/si_tr_s.ndx \
  links/11-13.1/wsj0/doc/indices/train/tr_s_wv1.ndx | \
- $local/ndx2flist.pl  $* | sort | \
+ $local/ndx2flist.pl  "$@" | sort | \
  grep -v -i 11-2.1/wsj0/si_tr_s/401 > train_si284.flist
 
 nl=`cat train_si284.flist | wc -l`
@@ -85,32 +85,32 @@ nl=`cat train_si284.flist | wc -l`
 # These index files have a slightly different format;
 # have to add .wv1
 cat links/11-13.1/wsj0/doc/indices/test/nvp/si_et_20.ndx | \
-  $local/ndx2flist.pl $* |  awk '{printf("%s.wv1\n", $1)}' | \
+  $local/ndx2flist.pl "$@" |  awk '{printf("%s.wv1\n", $1)}' | \
   sort > test_eval92.flist
 
 # Nov'92 (330 utts, 5k vocab)
 cat links/11-13.1/wsj0/doc/indices/test/nvp/si_et_05.ndx | \
-  $local/ndx2flist.pl $* |  awk '{printf("%s.wv1\n", $1)}' | \
+  $local/ndx2flist.pl "$@" |  awk '{printf("%s.wv1\n", $1)}' | \
   sort > test_eval92_5k.flist
 
 # Nov'93: (213 utts)
 # Have to replace a wrong disk-id.
 cat links/13-32.1/wsj1/doc/indices/wsj1/eval/h1_p0.ndx | \
   sed s/13_32_1/13_33_1/ | \
-  $local/ndx2flist.pl $* | sort > test_eval93.flist
+  $local/ndx2flist.pl "$@" | sort > test_eval93.flist
 
 # Nov'93: (213 utts, 5k)
 cat links/13-32.1/wsj1/doc/indices/wsj1/eval/h2_p0.ndx | \
   sed s/13_32_1/13_33_1/ | \
-  $local/ndx2flist.pl $* | sort > test_eval93_5k.flist
+  $local/ndx2flist.pl "$@" | sort > test_eval93_5k.flist
 
 # Dev-set for Nov'93 (503 utts)
 cat links/13-34.1/wsj1/doc/indices/h1_p0.ndx | \
-  $local/ndx2flist.pl $* | sort > test_dev93.flist
+  $local/ndx2flist.pl "$@" | sort > test_dev93.flist
 
 # Dev-set for Nov'93 (513 utts, 5k vocab)
 cat links/13-34.1/wsj1/doc/indices/h2_p0.ndx | \
-  $local/ndx2flist.pl $* | sort > test_dev93_5k.flist
+  $local/ndx2flist.pl "$@" | sort > test_dev93_5k.flist
 
 
 # Dev-set Hub 1,2 (503, 913 utterances)
@@ -118,12 +118,12 @@ cat links/13-34.1/wsj1/doc/indices/h2_p0.ndx | \
 # Note: the ???'s below match WSJ and SI_DT, or wsj and si_dt.
 # Sometimes this gets copied from the CD's with upcasing, don't know
 # why (could be older versions of the disks).
-find `readlink links/13-16.1`/???1/??_??_20 -print | grep -i ".wv1" | sort > dev_dt_20.flist
-find `readlink links/13-16.1`/???1/??_??_05 -print | grep -i ".wv1" | sort > dev_dt_05.flist
+find "`readlink links/13-16.1`"/???1/??_??_20 -print | grep -i ".wv1" | sort > dev_dt_20.flist
+find "`readlink links/13-16.1`"/???1/??_??_05 -print | grep -i ".wv1" | sort > dev_dt_05.flist
 
 
 # Finding the transcript files:
-for x in $*; do find -L $x -iname '*.dot'; done > dot_files.flist
+for x in "$@"; do find -L $x -iname '*.dot'; done > dot_files.flist
 
 # Convert the transcripts into our format (no normalization yet)
 for x in train_si84 train_si284 test_eval92 test_eval93 test_dev93 test_eval92_5k test_eval93_5k test_dev93_5k dev_dt_05 dev_dt_20; do
@@ -184,7 +184,7 @@ prune-lm --threshold=1e-7 $lmdir/lm_tg_5k.arpa.gz $lmdir/lm_tgpr_5k.arpa || exit
 gzip -f $lmdir/lm_tgpr_5k.arpa || exit 1;
 
 
-if [ ! -f wsj0-train-spkrinfo.txt ] || [ `cat wsj0-train-spkrinfo.txt | wc -l` -ne 134 ]; then
+if [ ! -f wsj0-train-spkrinfo.txt ] || [ "`cat wsj0-train-spkrinfo.txt | wc -l`" -ne 134 ]; then
   rm wsj0-train-spkrinfo.txt
   ! wget https://catalog.ldc.upenn.edu/docs/LDC93S6A/wsj0-train-spkrinfo.txt && \
     echo "Getting wsj0-train-spkrinfo.txt from backup location" && \
diff --git a/egs/wsj/s5/local/wsj_extend_dict.sh b/egs/wsj/s5/local/wsj_extend_dict.sh
index c2b11b8dc8b..fb993ddc6a9 100755
--- a/egs/wsj/s5/local/wsj_extend_dict.sh
+++ b/egs/wsj/s5/local/wsj_extend_dict.sh
@@ -14,7 +14,7 @@
 
 dict_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 if [ $# -ne 1 ]; then
@@ -62,7 +62,7 @@ echo "Getting training data [this should take at least a few seconds; if not, th
 # oov.counts below (before adding this rule).
 
 touch $dir/cleaned.gz
-if [ `du -m $dir/cleaned.gz | cut -f 1` -eq 73 ]; then
+if [ "`du -m $dir/cleaned.gz | cut -f 1`" -eq 73 ]; then
   echo "Not getting cleaned data in $dir/cleaned.gz again [already exists]";
 else
  gunzip -c $srcdir/wsj1/doc/lng_modl/lm_train/np_data/{87,88,89}/*.z \
@@ -131,7 +131,7 @@ reverse_dict.pl $dir/f/oovs > $dir/b/oovs
 # that it finds.
 for d in $dir/f $dir/b; do
  (
-   cd $d
+   cd $d || exit 1;
    cat dict | get_rules.pl 2>get_rules.log >rules
    get_rule_hierarchy.pl rules >hierarchy
    awk '{print $1}' dict | get_candidate_prons.pl rules dict | \
@@ -170,7 +170,7 @@ head $dir/oovlist.not_handled.counts
 echo "Count of OOVs we handled is `awk '{x+=$1} END{print x}' $dir/oovlist.handled.counts`"
 echo "Count of OOVs we couldn't handle is `awk '{x+=$1} END{print x}' $dir/oovlist.not_handled.counts`"
 echo "Count of OOVs we didn't handle due to low count is" \
-    `awk -v thresh=$mincount '{if ($1 < thresh) x+=$1; } END{print x;}' $dir/oov.counts`
+    "`awk -v thresh=$mincount '{if ($1 < thresh) x+=$1; } END{print x;}' $dir/oov.counts`"
 # The two files created above are for humans to look at, as diagnostics.
 
 cat <<EOF | cat - $dir/dict.cmu $dir/dict.oovs_merged | sort | uniq > $dir/lexicon.txt
diff --git a/egs/wsj/s5/local/wsj_format_data.sh b/egs/wsj/s5/local/wsj_format_data.sh
index 897b904db83..e83ba5c73e5 100755
--- a/egs/wsj/s5/local/wsj_format_data.sh
+++ b/egs/wsj/s5/local/wsj_format_data.sh
@@ -15,7 +15,7 @@
 
 lang_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 . ./path.sh || exit 1;
diff --git a/egs/wsj/s5/local/wsj_format_local_lms.sh b/egs/wsj/s5/local/wsj_format_local_lms.sh
index c415a806fff..f875694a357 100755
--- a/egs/wsj/s5/local/wsj_format_local_lms.sh
+++ b/egs/wsj/s5/local/wsj_format_local_lms.sh
@@ -5,7 +5,7 @@
 
 lang_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . ./path.sh
 . utils/parse_options.sh || exit 1;
 
diff --git a/egs/wsj/s5/local/wsj_prepare_dict.sh b/egs/wsj/s5/local/wsj_prepare_dict.sh
index c644f91bc6e..edd8454cb92 100755
--- a/egs/wsj/s5/local/wsj_prepare_dict.sh
+++ b/egs/wsj/s5/local/wsj_prepare_dict.sh
@@ -31,7 +31,7 @@
 # run this from ../
 dict_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 dir=data/local/dict${dict_suffix}
diff --git a/egs/wsj/s5/local/wsj_train_lms.sh b/egs/wsj/s5/local/wsj_train_lms.sh
index 0807210be18..891af985307 100755
--- a/egs/wsj/s5/local/wsj_train_lms.sh
+++ b/egs/wsj/s5/local/wsj_train_lms.sh
@@ -8,7 +8,7 @@
 
 dict_suffix=
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 . utils/parse_options.sh || exit 1;
 
 dir=data/local/local_lm
@@ -34,7 +34,7 @@ export PATH=$KALDI_ROOT/tools/kaldi_lm:$PATH
 
 
 
-if [ ! -f $srcdir/cleaned.gz -o ! -f $srcdir/lexicon.txt ]; then
+if [ ! -f $srcdir/cleaned.gz ] || [ ! -f $srcdir/lexicon.txt ]; then
   echo "Expecting files $srcdir/cleaned.gz and $srcdir/lexicon.txt to exist";
   echo "You need to run local/wsj_extend_dict.sh before running this script."
   exit 1;
@@ -194,8 +194,8 @@ gunzip -c $srcdir/cleaned.gz | tail -n +$heldout_sent | add-start-end.sh | \
   gzip -c > $idir/train.gz
 
 dict -i=WSJ.cleaned.irstlm.txt -o=dico -f=y -sort=no
- cat dico | gawk 'BEGIN{while (getline<"vocab.20k.nooov") v[$1]=1; print "DICTIONARY 0 "length(v);}FNR>1{if ($1 in v)\
-{print $0;}}' > vocab.irstlm.20k
+ cat dico | gawk 'BEGIN{while (getline<"vocab.20k.nooov") v[$1]=1; print "DICTIONARY 0 "length(v);}FNR>1{if ($1 in v)'\
+'{print $0;}}' > vocab.irstlm.20k
 
 
 build-lm.sh -i "gunzip -c $idir/train.gz" -o $idir/lm_3gram.gz  -p yes \
diff --git a/egs/wsj/s5/local/wsj_train_rnnlms.sh b/egs/wsj/s5/local/wsj_train_rnnlms.sh
index 4472c1c52ca..781b71b21f4 100755
--- a/egs/wsj/s5/local/wsj_train_rnnlms.sh
+++ b/egs/wsj/s5/local/wsj_train_rnnlms.sh
@@ -43,7 +43,7 @@ $KALDI_ROOT/tools/extras/check_for_rnnlm.sh "$rnnlm_ver" || exit 1
 export PATH=$KALDI_ROOT/tools/$rnnlm_ver:$PATH
 
 
-if [ ! -f $srcdir/cleaned.gz -o ! -f $srcdir/lexicon.txt ]; then
+if [ ! -f $srcdir/cleaned.gz ] || [ ! -f $srcdir/lexicon.txt ]; then
   echo "Expecting files $srcdir/cleaned.gz and $srcdir/wordlist.final to exist";
   echo "You need to run local/wsj_extend_dict.sh before running this script."
   exit 1;
diff --git a/egs/wsj/s5/steps/scoring/score_kaldi_wer.sh b/egs/wsj/s5/steps/scoring/score_kaldi_wer.sh
index 9988c941441..5944c92330f 100755
--- a/egs/wsj/s5/steps/scoring/score_kaldi_wer.sh
+++ b/egs/wsj/s5/steps/scoring/score_kaldi_wer.sh
@@ -18,9 +18,9 @@ max_lmwt=17
 iter=final
 #end configuration section.
 
-echo "$0 $@"  # Print the command line for logging
+echo "$0 $*"  # Print the command line for logging
 [ -f ./path.sh ] && . ./path.sh
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -ne 3 ]; then
   echo "Usage: $0 [--cmd (run.pl|queue.pl...)] <data-dir> <lang-dir|graph-dir> <decode-dir>"
diff --git a/egs/wsj/s5/utils/combine_data.sh b/egs/wsj/s5/utils/combine_data.sh
index d0c754f71b5..e9aeeac3c74 100755
--- a/egs/wsj/s5/utils/combine_data.sh
+++ b/egs/wsj/s5/utils/combine_data.sh
@@ -16,7 +16,7 @@ skip_fix=false # skip the fix_data_dir.sh in the end
 echo "$0 $@"  # Print the command line for logging
 
 if [ -f path.sh ]; then . ./path.sh; fi
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -lt 2 ]; then
   echo "Usage: combine_data.sh [--extra-files 'file1 file2'] <dest-data-dir> <src-data-dir1> <src-data-dir2> ..."
@@ -28,14 +28,12 @@ fi
 dest=$1;
 shift;
 
-first_src=$1;
-
 rm -r $dest 2>/dev/null
 mkdir -p $dest;
 
 export LC_ALL=C
 
-for dir in $*; do
+for dir in "$@"; do
   if [ ! -f $dir/utt2spk ]; then
     echo "$0: no such file $dir/utt2spk"
     exit 1;
@@ -46,7 +44,7 @@ done
 # it is not compulsary for it to exist in src directories, but if it exists in
 # even one it should exist in all. We will create the files where necessary
 has_utt2uniq=false
-for in_dir in $*; do
+for in_dir in "$@"; do
   if [ -f $in_dir/utt2uniq ]; then
     has_utt2uniq=true
     break
@@ -55,7 +53,7 @@ done
 
 if $has_utt2uniq; then
   # we are going to create an utt2uniq file in the destdir
-  for in_dir in $*; do
+  for in_dir in "$@"; do
     if [ ! -f $in_dir/utt2uniq ]; then
       # we assume that utt2uniq is a one to one mapping
       cat $in_dir/utt2spk | awk '{printf("%s %s\n", $1, $1);}'
@@ -73,7 +71,7 @@ extra_files=$(echo "$extra_files"|sed -e "s/utt2uniq//g")
 # segments are treated similarly to utt2uniq. If it exists in some, but not all
 # src directories, then we generate segments where necessary.
 has_segments=false
-for in_dir in $*; do
+for in_dir in "$@"; do
   if [ -f $in_dir/segments ]; then
     has_segments=true
     break
@@ -81,7 +79,7 @@ for in_dir in $*; do
 done
 
 if $has_segments; then
-  for in_dir in $*; do
+  for in_dir in "$@"; do
     if [ ! -f $in_dir/segments ]; then
       echo "$0 [info]: will generate missing segments for $in_dir" 1>&2
       utils/data/get_segments_for_data.sh $in_dir
@@ -97,7 +95,7 @@ fi
 for file in utt2spk utt2lang utt2dur feats.scp text cmvn.scp reco2file_and_channel wav.scp spk2gender $extra_files; do
   exists_somewhere=false
   absent_somewhere=false
-  for d in $*; do
+  for d in "$@"; do
     if [ -f $d/$file ]; then
       exists_somewhere=true
     else
@@ -107,7 +105,7 @@ for file in utt2spk utt2lang utt2dur feats.scp text cmvn.scp reco2file_and_chann
 
   if ! $absent_somewhere; then
     set -o pipefail
-    ( for f in $*; do cat $f/$file; done ) | sort -k1 > $dest/$file || exit 1;
+    ( for f in "$@"; do cat $f/$file; done ) | sort -k1 > $dest/$file || exit 1;
     set +o pipefail
     echo "$0: combined $file"
   else
diff --git a/egs/wsj/s5/utils/convert_slf_parallel.sh b/egs/wsj/s5/utils/convert_slf_parallel.sh
index 1b242ed2c38..4f2edb534a2 100755
--- a/egs/wsj/s5/utils/convert_slf_parallel.sh
+++ b/egs/wsj/s5/utils/convert_slf_parallel.sh
@@ -14,7 +14,7 @@ word_to_node=false # Words in arcs or nodes? [default:arcs]
 echo "$0 $@"
 
 [ -f ./path.sh ] && . ./path.sh
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -ne 3 ]; then
   echo "Usage: $0 [options] <data-dir> <lang-dir|graph-dir> <decode-dir>"
@@ -42,7 +42,6 @@ done
 echo "$0: Converting lattices into '$dir/$dirname'"
 
 # Words in arcs or nodes? [default:nodes]
-word_to_link_arg=
 $word_to_node && word_to_node_arg="--word-to-node"
 
 nj=$(cat $dir/num_jobs)
@@ -56,7 +55,7 @@ $cmd $parallel_opts JOB=1:$nj $dir/$dirname/log/lat_convert.JOB.log \
   utils/convert_slf.pl $word_to_node_arg - $dir/$dirname/JOB/ || exit 1
 
 # make list of lattices
-find -L $PWD/$dir/$dirname -name *.lat.gz > $dir/$dirname/lat_htk.scp || exit 1
+find -L $PWD/$dir/$dirname -name "*.lat.gz" > $dir/$dirname/lat_htk.scp || exit 1
 
 # check number of lattices:
 nseg=$(cat $data/segments | wc -l)
diff --git a/egs/wsj/s5/utils/format_lm.sh b/egs/wsj/s5/utils/format_lm.sh
index 7d1ec0e6eef..6f1131c4b8a 100755
--- a/egs/wsj/s5/utils/format_lm.sh
+++ b/egs/wsj/s5/utils/format_lm.sh
@@ -39,7 +39,6 @@ for f in phones.txt words.txt topo L.fst L_disambig.fst phones/ oov.int oov.txt;
   cp -r $lang_dir/$f $out_dir
 done
 
-lm_base=$(basename $lm '.gz')
 gunzip -c $lm \
   | arpa2fst --disambig-symbol=#0 \
              --read-symbol-table=$out_dir/words.txt - $out_dir/G.fst
diff --git a/egs/wsj/s5/utils/format_lm_sri.sh b/egs/wsj/s5/utils/format_lm_sri.sh
index 4ef31d925ca..d3cbc92b782 100755
--- a/egs/wsj/s5/utils/format_lm_sri.sh
+++ b/egs/wsj/s5/utils/format_lm_sri.sh
@@ -40,6 +40,8 @@ fi
 if [ $# -eq 4 ] ; then
   lang_dir=$1
   lm=$2
+  # shellcheck disable=2034
+  # This unused variable is here for backwards compatibility reasons
   lexicon=$3
   out_dir=$4
 else
@@ -73,7 +75,6 @@ trap 'rm -rf "$tmpdir"' EXIT
 mkdir -p $out_dir
 cp -r $lang_dir/* $out_dir || exit 1;
 
-lm_base=$(basename $lm '.gz')
 awk '{print $1}' $out_dir/words.txt > $tmpdir/voc || exit 1;
 
 # Change the LM vocabulary to be the intersection of the current LM vocabulary
diff --git a/egs/wsj/s5/utils/lang/make_phone_bigram_lang.sh b/egs/wsj/s5/utils/lang/make_phone_bigram_lang.sh
index dcb77bb1342..141ebdcc03d 100755
--- a/egs/wsj/s5/utils/lang/make_phone_bigram_lang.sh
+++ b/egs/wsj/s5/utils/lang/make_phone_bigram_lang.sh
@@ -16,7 +16,7 @@
 echo "$0 $@"  # Print the command line for logging
 
 [ -f ./path.sh ] && . ./path.sh; # source the path.
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 
 if [ $# != 3 ]; then
diff --git a/egs/wsj/s5/utils/make_absolute.sh b/egs/wsj/s5/utils/make_absolute.sh
index 523e19ac975..c14b30ec3d2 100755
--- a/egs/wsj/s5/utils/make_absolute.sh
+++ b/egs/wsj/s5/utils/make_absolute.sh
@@ -4,13 +4,13 @@
 # It turns a pathname into an absolute pathname, including following soft links.
 target_file=$1
 
-cd $(dirname $target_file)
+cd $(dirname $target_file) || exit 1
 target_file=$(basename $target_file)
 
 # Iterate down a (possible) chain of symlinks
 while [ -L "$target_file" ]; do
     target_file=$(readlink $target_file)
-    cd $(dirname $target_file)
+    cd $(dirname $target_file) || exit 1
     target_file=$(basename $target_file)
 done
 
diff --git a/egs/wsj/s5/utils/mkgraph.sh b/egs/wsj/s5/utils/mkgraph.sh
index 1becfc45be3..23da2e4ea6d 100755
--- a/egs/wsj/s5/utils/mkgraph.sh
+++ b/egs/wsj/s5/utils/mkgraph.sh
@@ -13,6 +13,8 @@
 # (this is compiled from this repository using Doxygen,
 # the source for this part is in src/doc/graph_recipe_test.dox)
 
+# shellcheck disable=2064
+
 set -o pipefail
 
 tscale=1.0
@@ -20,8 +22,8 @@ loopscale=0.1
 
 remove_oov=false
 
-for x in `seq 4`; do
-  [ "$1" == "--mono" -o "$1" == "--left-biphone" -o "$1" == "--quinphone" ] && shift && \
+for _ in `seq 4`; do
+  [ "$1" == "--mono" ] || [ "$1" == "--left-biphone" ] || [ "$1" == "--quinphone" ] && shift && \
     echo "WARNING: the --mono, --left-biphone and --quinphone options are now deprecated and ignored."
   [ "$1" == "--remove-oov" ] && remove_oov=true && shift;
   [ "$1" == "--transition-scale" ] && tscale=$2 && shift 2;
@@ -137,7 +139,7 @@ if [[ ! -s $dir/HCLG.fst || $dir/HCLG.fst -ot $dir/HCLGa.fst ]]; then
   add-self-loops --self-loop-scale=$loopscale --reorder=true \
     $model < $dir/HCLGa.fst | fstconvert --fst_type=const > $dir/HCLG.fst.$$ || exit 1;
   mv $dir/HCLG.fst.$$ $dir/HCLG.fst
-  if [ $tscale == 1.0 -a $loopscale == 1.0 ]; then
+  if [ $tscale == 1.0 ] && [ $loopscale == 1.0 ]; then
     # No point doing this test if transition-scale not 1, as it is bound to fail.
     fstisstochastic $dir/HCLG.fst || echo "[info]: final HCLG is not stochastic."
   fi
diff --git a/egs/wsj/s5/utils/parse_options.sh b/egs/wsj/s5/utils/parse_options.sh
index fdc8a362843..2315660d612 100755
--- a/egs/wsj/s5/utils/parse_options.sh
+++ b/egs/wsj/s5/utils/parse_options.sh
@@ -46,11 +46,12 @@ done
 ###
 while true; do
   [ -z "${1:-}" ] && break;  # break if there are no arguments
+  # shellcheck disable=2154
   case "$1" in
     # If the enclosing script is called with --help option, print the help 
     # message and exit.  Scripts should put help messages in $help_message
   --help|-h) if [ -z "$help_message" ]; then echo "No help found." 1>&2;
-	  else printf "$help_message\n" 1>&2 ; fi; 
+	  else printf "%s\n" "$help_message" 1>&2 ; fi; 
 	  exit 0 ;; 
   --*=*) echo "$0: options to scripts must be of the form --name value, got '$1'"
        exit 1 ;;
@@ -63,6 +64,7 @@ while true; do
     # The test [ -z ${foo_bar+xxx} ] will return true if the variable foo_bar
     # is undefined.  We then have to wrap this test inside "eval" because 
     # foo_bar is itself inside a variable ($name).
+      # shellcheck disable=2016
       eval '[ -z "${'$name'+xxx}" ]' && echo "$0: invalid option $1" 1>&2 && exit 1;
       
       oldval="`eval echo \\$$name`";
diff --git a/egs/wsj/s5/utils/prepare_online_nnet_dist_build.sh b/egs/wsj/s5/utils/prepare_online_nnet_dist_build.sh
index adc2cefbe42..9ad9d524f85 100755
--- a/egs/wsj/s5/utils/prepare_online_nnet_dist_build.sh
+++ b/egs/wsj/s5/utils/prepare_online_nnet_dist_build.sh
@@ -12,7 +12,7 @@ ivec_extractor_files="final.dubm final.ie final.mat global_cmvn.stats online_cmv
 
 echo "$0 $@"  # Print the command line for logging
 [ -f path.sh ] && . ./path.sh;
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# -ne 3 ]; then
    echo "Usage: $0 <lang-dir> <model-dir> <output-tgz>"
diff --git a/egs/wsj/s5/utils/remove_data_links.sh b/egs/wsj/s5/utils/remove_data_links.sh
index 8ec68f91bc9..908d97fd461 100755
--- a/egs/wsj/s5/utils/remove_data_links.sh
+++ b/egs/wsj/s5/utils/remove_data_links.sh
@@ -27,7 +27,7 @@ if [ $# == 0 ]; then
   echo " With --dry-run, just prints what it would do."
 fi
 
-for dir in $*; do
+for dir in "$@"; do
   if [ ! -d $dir ]; then
     echo "$0: not a directory: $dir"
     ret=1
diff --git a/egs/wsj/s5/utils/split_data.sh b/egs/wsj/s5/utils/split_data.sh
index bc5894e7551..ed5133bf91d 100755
--- a/egs/wsj/s5/utils/split_data.sh
+++ b/egs/wsj/s5/utils/split_data.sh
@@ -50,10 +50,6 @@ else
 fi
 
 n=0;
-feats=""
-wavs=""
-utt2spks=""
-texts=""
 
 nu=`cat $data/utt2spk | wc -l`
 nf=`cat $data/feats.scp 2>/dev/null | wc -l`
diff --git a/egs/wsj/s5/utils/subset_data_dir_tr_cv.sh b/egs/wsj/s5/utils/subset_data_dir_tr_cv.sh
index 1bf3951b9dc..468d401eae4 100755
--- a/egs/wsj/s5/utils/subset_data_dir_tr_cv.sh
+++ b/egs/wsj/s5/utils/subset_data_dir_tr_cv.sh
@@ -32,12 +32,13 @@ uttbase=true; # by default, we choose last 10% utterances for CV
 
 if [ "$1" == "--cv-spk-percent" ]; then
   uttbase=false;
-  spkbase=true;
+  # Otherwise, do splitting based on speakers, such that the same
+  # speaker won't be in both train and cross validation sets.
 fi
 
 [ -f path.sh ] && . ./path.sh; 
 
-. parse_options.sh || exit 1;
+. utils/parse_options.sh || exit 1;
 
 if [ $# != 3 ]; then
   echo "Usage: $0 [--cv-spk-percent P|--cv-utt-percent P] <srcdir> <traindir> <crossvaldir>"
diff --git a/tools/extras/travis_script.sh b/tools/extras/travis_script.sh
index 6acc805abda..a6d222eb0d6 100755
--- a/tools/extras/travis_script.sh
+++ b/tools/extras/travis_script.sh
@@ -66,16 +66,24 @@ CCC=$(mtoken CXX "$CXX")
 #fi
 
 echo "Building tools..." [Time: $(date)]
-runvx cd tools
-runvx make -j$MAXPAR openfst "$CCC" CXXFLAGS="$CF" \
-      OPENFST_CONFIGURE="--disable-static --enable-shared --disable-bin --disable-dependency-tracking"
-cd ..
+# runvx cd tools
+# runvx make -j$MAXPAR openfst "$CCC" CXXFLAGS="$CF" \
+#       OPENFST_CONFIGURE="--disable-static --enable-shared --disable-bin --disable-dependency-tracking"
+# runvx cd ..
 
 runvx cd src
-runvx touch base/.depend.mk  # Fool make depend into skipping the dependency step.
-runvx touch .short_version   # Make version short, or else ccache will miss everything.
-runvx "$CCC" CXXFLAGS="$CF" LDFLAGS="$LDF" ./configure --shared --use-cuda=no "$DPF" --mathlib=OPENBLAS --openblas-root="$XROOT/usr"
-runvx make -j$MAXPAR $CI_TARGETS CI_NOLINKBINARIES=1
+# runvx touch base/.depend.mk  # Fool make depend into skipping the dependency step.
+# runvx touch .short_version   # Make version short, or else ccache will miss everything.
+# runvx "$CCC" CXXFLAGS="$CF" LDFLAGS="$LDF" ./configure --shared --use-cuda=no "$DPF" --mathlib=OPENBLAS --openblas-root="$XROOT/usr"
+# runvx make -j$MAXPAR $CI_TARGETS CI_NOLINKBINARIES=1
+
+runvx cd ../egs/wsj/s5
+#runvx find ./ -mindepth 1 -name "*.sh" -exec shellcheck --exclude=SC1090,SC2002,SC2006, --shell=bash --external-sources '{}' ';'
+runvx find ./utils ./steps -name "*.sh" -exec shellcheck --exclude=SC1090,SC2002,SC2006 --shell=bash --external-sources '{}' ';'
+# for bash_file in $(find ../egs -name "*.sh"); do
+#   runvx shellcheck -s bas $perl_file
+# done
+
 
 # Travis has a 10k line log limit, so use smaller CI_TARGETS when logging.
 if [ -r "$CCACHE_LOGFILE" ]; then