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
option overrides the terminal type specified in the environment.
file corresponding to
is read to determine the appropriate sequences for underlining.
If the terminal is incapable of underlining,
but is capable of a standout mode, the standout mode is used instead.
If the terminal can overstrike,
or handles underlining automatically,
If the terminal cannot underline, underlining is ignored.
to indicate underlining onto by a separate line
containing appropriate dashes
this is useful when you want to look at the underlining
present in an
output stream on a
International Code Set Support
Single- and multi-byte character code sets are supported
with the exception that multi-byte-character file names
are not supported.
usually outputs a series of backspaces and underlines intermixed
with the text to indicate underlining.
No attempt is made to optimize the backward motion.
was developed by the University of California, Berkeley.
terminal capability files