1UL(1) BSD General Commands Manual UL(1)
2
4 ul — do underlining
5
7 ul [-i] [-t terminal] [name ...]
8
10 Ul reads the named files (or standard input if none are given) and trans‐
11 lates occurrences of underscores to the sequence which indicates under‐
12 lining for the terminal in use, as specified by the environment variable
13 TERM. The terminfo database is read to determine the appropriate
14 sequences for underlining. If the terminal is incapable of underlining,
15 but is capable of a standout mode then that is used instead. If the ter‐
16 minal can overstrike, or handles underlining automatically, ul degener‐
17 ates to cat(1). If the terminal cannot underline, underlining is
18 ignored.
19 The following options are available:
21 -i Underlining is indicated by a separate line containing appropri‐
23 ate dashes `-'; this is useful when you want to look at the
24 underlining which is present in an nroff output stream on a crt-
25 terminal.
26 -t terminal
28 Overrides the terminal type specified in the environment with
29 terminal.
30
32 The following environment variable is used:
33 TERM The TERM variable is used to relate a tty device with its device
35 capability description (see terminfo(5)). TERM is set at login
36 time, either by the default terminal type specified in /etc/ttys or
37 as set during the login process by the user in their login file
38 (see setenv(1)).
39
41 man(1), nroff(1), colcrt(1)
42
44 Nroff usually outputs a series of backspaces and underlines intermixed
45 with the text to indicate underlining. No attempt is made to optimize
46 the backward motion.
47
49 The ul command appeared in 3.0BSD.
50
52 The ul command is part of the util-linux-ng package and is available from
53 ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/.
544th Berkeley Distribution June 6, 1993 4th Berkeley Distribution