UL(1)
NAME
ul − do underlining
USAGE
ul [ −i ] [ −t terminal ] [ name ... ]
DESCRIPTION
Ul reads the named files (or standard input if none are given) and translates occurrences of underscores to the sequence that indicates underlining for the terminal in use, as specified by the TERM environment variable.
The /etc/termcap file determines the appropriate 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(1). If the terminal cannot underline, underlining is ignored.
OPTIONS
−i Indicate underlining by a separate line containing the appropriate number of dashes. This helps show underlining present in an nroff(1) output stream on a CRT.
−t terminal Override the type of terminal specified in the environment.
CAUTIONS
Nroff(1) usually outputs a series of backspaces and underlines intermixed with the text to indicate underlining, but it makes no attempt to optimize the backward motion.