del_ext

#!/bin/bash

# Delete all files having a specific extension according to the existing files having another specific extension
# For example: "del_ext mp3 ogg" will delete MP3 files if an OGG file with the same name exists in the same directory

function confirm()
{
    echo -n "$@ "
    read -e answer
    for response in y Y yes YES o oui O
    do
        if [ "_$answer" == "_$response" ]
        then
            return 0
        fi
    done

    # Any answer other than the list above is considerred a "no" answer
    return 1
}

if [[ $# -lt 2 ]]; then
     echo "Usage: $0 [extension to be deleted] [reference extension]"
     exit
fi 

ref=$2
del=$1

echo "Delete all .$del if a $ref. of the same name exists"
confirm "OK?"

if [ $? -eq 1 ]
then
    exit
fi

echo ""

find . -maxdepth 1 -type f -iname "*.$ref" -print0 | while IFS= read -r -d $'\0' line; do
    toDel=${line/.$ref/.$del}
    echo "Reference file : $line"
    ls -l "$line"
    echo "File to delete : $toDel"
    ls -l "$toDel"
    rm -v "$toDel"
    echo ""
done