Provided by: rcs_5.7-25_amd64 bug


       ident - identify RCS keyword strings in files


       ident [ -q ] [ -V ] [ file ... ]


       ident searches for all instances of the pattern $keyword: text $ in the named files or, if
       no files are named, the standard input.

       These patterns are normally inserted automatically by the 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 option -V prints ident's version number.

       ident works on text files as well as object files  and  dumps.   For  example,  if  the  C
       program in f.c contains

              #include <stdio.h>
              static char const rcsid[] =
                "$Id: f.c,v 5.4 1993/11/09 17:40:15 eggert Exp $";
              int main() { return printf("%s\n", rcsid) == EOF; }

       and f.c is compiled into f.o, then the command

              ident  f.c  f.o

       will output

                  $Id: f.c,v 5.4 1993/11/09 17:40:15 eggert Exp $
                  $Id: f.c,v 5.4 1993/11/09 17:40:15 eggert Exp $

       If  a  C  program  defines  a  string  like  rcsid  above but does not use it, lint(1) may
       complain, and some C compilers will optimize away the string.  The most reliable  solution
       is to have the program use the rcsid string, as shown in the example above.

       ident finds all instances of the $keyword: text $ pattern, even if keyword is not actually
       an RCS-supported keyword.  This gives you  information  about  nonstandard  keywords  like


       Here  is  the  list  of  keywords  currently  maintained by co(1).  All times are given in
       Coordinated Universal Time (UTC, sometimes called GMT) by default, but if the  files  were
       checked  out  with co's -zzone option, times are given with a numeric time zone indication

              The login name of the user who checked in the revision.

       $Date$ The date and time the revision was checked in.

              A standard header containing the full  pathname  of  the  RCS  file,  the  revision
              number, the date and time, the author, the state, and the locker (if locked).

       $Id$   Same as $Header$, except that the RCS filename is without a path.

              The login name of the user who locked the revision (empty if not locked).

       $Log$  The  log message supplied during checkin.  For ident's purposes, this is equivalent
              to $RCSfile$.

       $Name$ The symbolic name used to check out the revision, if any.

              The name of the RCS file without a path.

              The revision number assigned to the revision.

              The full pathname of the RCS file.

              The state assigned to the revision with the -s option of rcs(1) or ci(1).

       co(1) represents the following characters in keyword values by escape  sequences  to  keep
       keyword strings well-formed.

              char     escape sequence
              tab      \t
              newline  \n
              space    \040
              $        \044
              \        \\


       Author: Walter F. Tichy.
       Manual Page Revision: 5.4; Release Date: 1993/11/09.
       Copyright © 1982, 1988, 1989 Walter F. Tichy.
       Copyright © 1990, 1992, 1993 Paul Eggert.


       ci(1), co(1), rcs(1), rcsdiff(1), rcsintro(1), rcsmerge(1), rlog(1), rcsfile(5)
       Walter  F. Tichy, RCS--A System for Version Control, Software--Practice & Experience 15, 7
       (July 1985), 637-654.