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IDENT(1)							      IDENT(1)


NAME    [Toc]    [Back]

     ident - identify RCS keyword strings in files

SYNOPSIS    [Toc]    [Back]

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

DESCRIPTION    [Toc]    [Back]

     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	1.11 1998/01/12	23:31:17 pj 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 1.11 1998/01/12 23:31:17 pj Exp $
	  f.o:
	      $Id: f.c,v 1.11 1998/01/12 23:31:17 pj 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    [Toc]    [Back]

     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.




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IDENT(1)							      IDENT(1)



     $Date$
	  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    [Toc]    [Back]

     Author: Walter F. Tichy.
     Revision Number: 5.7; Release Date: 1998/01/12.
     Copyright c 1982, 1988, 1989 by Walter F. Tichy.
     Copyright c 1990, 1992, 1993 by Paul Eggert.






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IDENT(1)							      IDENT(1)


SEE ALSO    [Toc]    [Back]

      
      
     ci(1), co(1), rcs(1), rcsdiff(1), rcsintro(1), rcsmerge(1), rlog(1),
     rcsfile(4), RCSsource(5)
     Walter F. Tichy, RCS--A System for	Version	Control, Software--Practice &
     Experience	15, 7 (July 1985), 637-654.


									PPPPaaaaggggeeee 3333
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