Translate characters - run replacements based on single characters and…
Translate characters - run replacements based on single characters and character sets.
tr {{find_characters}} {{replace_characters}} < {{filename}}
tr 'abcd' 'jkmn' < {{filename}}
tr -d '{{input_characters}}'
tr -s '\n'
tr "[:lower:]" "[:upper:]" < {{filename}}
tr -cd "[:print:]" < {{filename}}