# split the $PATH into separate components echo $PATH | perl -pe 's/:/\n/g' # convert line endings cat file | perl -0777 -pe 's/ \n | \r\n? /\n/gx' # to Unix cat file | perl -0777 -pe 's/ \n | \r\n? /\r\n/gx' # to DOS cat file | perl -0777 -pe 's/ \n | \r\n? /\r/gx' # to "classic" Mac OS