11-28-2007
What is the value of:
1. $EDITOR
2. $TERM
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LEARN ABOUT OPENDARWIN
ul
UL(1) BSD General Commands Manual UL(1)
NAME
ul -- do underlining
SYNOPSIS
ul [-i] [-t terminal] [name ...]
DESCRIPTION
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:
-i Underlining is indicated by a separate line containing appropriate dashes `-'; this is useful when you want to look at the underlin-
ing which is present in an nroff output stream on a crt-terminal.
-t terminal
Overrides the terminal type specified in the environment with terminal.
ENVIRONMENT
The following environment variable is used:
TERM The TERM variable is 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 ALSO
colcrt(1), man(1), nroff(1)
BUGS
The nroff(1) command 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.
BSD
June 6, 1993 BSD