ul - underline
ul [ -i ] [ -t terminal ] [ filename . . . ]
The ul command reads the named filenames (or the standard input if none
are given) and translates occurrences of underscores to the sequence
which indicates underlining for the terminal in use, as specified by the
environment variable TERM. ul uses the appropriate
/usr/share/lib/terminfo file to determine the character sequences for
underlining. If the terminal is incapable of underlining, but is capable
of a standout mode then that is used instead. If the terminal can
overstrike, or handles underlining automatically, ul degenerates to cat.
If the terminal cannot underline, underlining is ignored.
The following options are available:
-t terminal Override the terminal kind specified in the environment. If
the terminal cannot underline, underlining is ignored.
-i Indicate underlining by a separate line containing
appropriate dashes -; this is useful when you want to look at
the underlining which is present in an nroff output stream on
-b Use bold if a combination of attributes is present (for
example, underlining plus bold). The default in this
situation is to use reverse video. The manual pages look
better with this option, so man(1) uses it by default.
cat(1), man(1), nroff(1)
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