04-28-2010
Not trivial since an escape sequence contains several characters, most of them printable. It'd be possible to make a monstrous sed statement to recognize all of them, technically, but removing them would make it even less readable since it contains the complete record of their terminal output, keystroke by keystroke. Removing backspaces for instance may turn 'rm filename' into 'rm filmoijoijoename' if someone corrected a lot of typos.
If you just cat or more or less -r it in a terminal, that should present it in a readable manner.
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LEARN ABOUT OPENSOLARIS
ul
ul(1) User Commands ul(1)
NAME
ul - do underlining
SYNOPSIS
ul [-i] [-t terminal] [filename]...
DESCRIPTION
ul reads the named filenames (or the 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. ul uses the /usr/share/lib/terminfo entry 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 can-
not underline, underlining is ignored.
OPTIONS
-t terminal Override the terminal kind specified in the environment. If the terminal cannot underline, underlining is ignored. If the
terminal name is not found, no underlining is attempted.
-i Indicate underlining by a separate line containing appropriate dashes `-'; this is useful when you want to look at the
underlining which is present in an nroff(1) output stream on a CRT-terminal.
RETURN VALUES
ul returns exit code 1 if the file specified is not found.
FILES
/usr/share/lib/terminfo/*
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWdoc |
+-----------------------------+-----------------------------+
SEE ALSO
cat(1), man(1), nroff(1), attributes(5)
BUGS
nroff usually generates a series of backspaces and underlines intermixed with the text to indicate underlining. ul makes attempt to opti-
mize the backward motion.
SunOS 5.11 17 Mar 1994 ul(1)