echo "text" # Print text
printf "hi\n" # Print formatted text
clear # Clear terminal screen
nano file.txt # Edit file in Nano
head file.txt # First 10 lines
tail file.txt # Last 10 lines
less file.txt # Scroll through file
wc file.txt # Word, line, character count
grep "word" file.txt # Search for text
sort file.txt # Sort lines
uniq file.txt # Unique lines