ident - identify files
ident [ -q ] [ file ... ]
The ident(1) utility searches for all occurrences of the pattern $keyword:...$ in the named files or, if no file is specified, the standard input.
These patterns are normally inserted automatically by the revision control system (RCS) command co(1), but can also be inserted manually. The option -q suppresses the warning given if there are no patterns in a file.
The ident(1) utility works on text files as well as object files and dumps. For example, if the C program in f.c contains
char rcsid[] = "$Id: f.c,v 1.6 1999/06/09 14:30:10 johnmc Exp $";
and f.c is compiled into f.o, the command
$ ident f.c f.o
f.c:
$Id: f.c,v 1.6 1999/06/09 14:30:10 johnmc Exp $
f.o:
$Id: f.c,v 1.6 1999/06/09 14:30:10 johnmc Exp $
The ident(1) utility exits with status 0 on success and 1 on failure.
Author: Walter F. Tichy.
Copyright © 1982, 1988, 1989 by Walter F. Tichy.
Copyright © 1990 by Paul Eggert.
ci(1)
co(1)
rcs(1)
rcsdiff(1)
rlog(1)
Walter F. Tichy, RCS--A System for Version Control, Software--Practice & Experience 15, 7 (July 1985), 637-654.