UL(1) | General Commands Manual | UL(1) |
ul
— do
underlining
ul |
[-i ] [-t
terminal] [file ...] |
The ul
utility reads the named files (or
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
. The file
/etc/termcap is read to determine 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.
The following options are available:
The LANG
, LC_ALL
,
LC_CTYPE
and TERM
environment variables affect the execution of ul
as
described in environ(7).
The ul
utility exits 0 on success,
and >0 if an error occurs.
The ul
command appeared in
3.0BSD.
October 7, 2020 | macOS 14.6 |