table of contents
UL(1) | General Commands Manual | UL(1) |
NAME¶
ul
— do
underlining
SYNOPSIS¶
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 which indicates underlining for the terminal in use, as specified
by the environment variable TERM
. The
terminfo database 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:
ENVIRONMENT¶
The following environment variable is used:
TERM
- The
TERM
variable is used to relate a tty device with its device capability description (see terminfo(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 setenv(1)).
SEE ALSO¶
BUGS¶
Nroff usually outputs a series of backspaces and underlines intermixed with the text to indicate underlining. No attempt is made to optimize the backward motion.
HISTORY¶
The ul
command appeared in
3.0BSD.
AVAILABILITY¶
The ul command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
June 6, 1993 | BSD 4 |