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UL
Section: User Commands (1)
Index
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BSD mandoc
BSD 4
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:
- -i
-
Underlining is indicated by a separate line containing appropriate
dashes `-'; this is useful when you want to look at the underlining
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
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
man(1),
nroff(1),
colcrt(1)
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
BSD 3.0
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/.
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- ENVIRONMENT
-
- SEE ALSO
-
- BUGS
-
- HISTORY
-
- AVAILABILITY
-
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