I wanted to answer Use _roff to underline words with just use ul, this command is meant specifically for underlining text, however I just can't grasp how to use it. I thought$ echo hello _kitty_ world > /tmp/foo.txt$ ul /tmp/foo.txtwould give me an underlined kitty, however it doesn't. What am I doing wrong?
How to use the ul command line utility
command line;terminal;utilities;util linux
The input format requires character-backspace-underscore or character-backspace-letter to underline a character. You also get boldface with character-backspace-character.echo $'hello k\b_i\b_t\b_t\b_y\b_ world' | ulLess does a similar transformation automatically.