05-21-2014
Keep in mind, though, that the more stuff you put into a script the more has to be loaded once it is called. Modifying a script during runtime is a VERY BAD idea, like Corona688 already noted.
Why not create a man page? This is the intended place for such kind of information and would allow for inclusion of some text markup (using "troff"s "man" macro package) and make the information better accessible.
I hope this helps.
bakunin
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NROFF(1) General Commands Manual NROFF(1)
NAME
nroff - emulate nroff command with groff
SYNOPSIS
nroff [ -h ] [ -i ] [ -mname ] [ -nnum ] [ -olist ] [ -p ] [ -rcn ] [ -S ] [ -t ] [ -Tname ] [ -U ] [ -v ] [ file ... ]
DESCRIPTION
The nroff script emulates the nroff command using groff. Only ascii, ascii8, latin1, utf8, nippon, and cp1047 are valid arguments for the
-T option. If an invalid or no -T option is given, nroff checks the current locale to select a default output device. It first tries the
locale program, then the environment variables LC_ALL, LC_CTYPE, and LANG, and finally the LESSCHARSET environment variable.
The -h and -c options are equivalent to grotty's options -h (using tabs in the output) and -c (using the old output scheme instead of SGR
escape sequences). The -C, -i, -n, -m, -o, and -r options have the effect described in troff(1). In addition, nroff silently ignores the
options -e, -q, and -s (which are not implemented in troff). Options -p (pic), -t (tbl), -S (safer), and -U (unsafe) are passed to groff.
-v shows the version number.
ENVIRONMENT
GROFF_BIN_PATH
A colon separated list of directories in which to search for the groff executable before searching in PATH. If unset, `/usr/bin' is
used.
NOTES
This shell script is basically intended for use with man(1), so warnings are suppressed. nroff-style character definitions (in the file
tty-char.tmac) are also loaded to emulate unrepresentable glyphs.
SEE ALSO
groff(1), troff(1), grotty(1)
Groff Version 1.18.1 05 July 2010 NROFF(1)