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IDENT(1)                                                              IDENT(1)



NAME
       ident - identify RCS keyword strings in files

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

DESCRIPTION
       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

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

KEYWORDS
       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 appended.

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

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

       $Header$
              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.

       $Locker$
              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.

       $RCSfile$
              The name of the RCS file without a path.

       $Revision$
              The revision number assigned to the revision.

       $Source$
              The full pathname of the RCS file.

       $State$
              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
              \        \\

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

SEE ALSO
       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.



GNU                               1993/11/09                          IDENT(1)

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