UL(1) OpenBSD Reference Manual UL(1)NAMEul - do underlining
SYNOPSISul [-i] [-t terminal] [file ...]
DESCRIPTIONul 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 options are as follows:
-i Underlining is indicated by a separate line containing
appropriate dashes (`-').
-t terminal
Overrides the terminal type specified in the environment with
terminal.
ENVIRONMENT
TERM Used to relate a tty device with its device capability description
(see termcap(5)). TERM is set at login time, either by the default
terminal type specified in /etc/ttys or as set during the login
process by the user in their login file (see environ(7)).
SEE ALSOman(1)HISTORY
The ul command appeared in 3.0BSD.
OpenBSD 4.9 October 29, 2010 OpenBSD 4.9