ident(1) - man - phpman

IDENT(1)                               General Commands Manual                              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 RCS'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  $XConsor‐‐
       tium$.

       The  pattern  normally requires a colon and a space immediately after the keyword and a space
       immediately before the terminating $, but for Subversion 1.2 (and later) compatibility, ident
       will also recognize the pattern $keyword:: text $ (i.e., two colons and a space) and the pat‐
       tern $keyword:: text #$ (likewise, with a hash before the  terminating  $).   These  are  the
       fixed-width keyword syntax.  To summarize, the three recognized patterns are:

              $keyword: text $
              $keyword:: text $
              $keyword:: text #$

KEYWORDS
       Here  is  the list of keywords currently maintained by co(1).  All times are given in Coordi‐
       nated 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 RCS file name, the revision number, the date and
              time, the author, the state, and the locker (if locked).

       $Id$   Same as $Header$, except that the RCS file name is without directory components.

       $Locker$
              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 RCS file name without directory components.

       $Revision$
              The revision number assigned to the revision.

       $Source$
              The full RCS file name.

       $State$
              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 key‐
       word strings well-formed.

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

IDENTIFICATION
       Author: Walter F. Tichy.
       Manual Page Revision: 5.10.1; Release Date: 2022-02-19.
       Copyright © 2010-2022 Thien-Thi Nguyen.
       Copyright © 1990, 1992, 1993 Paul Eggert.
       Copyright © 1982, 1988, 1989 Walter F. Tichy.

SEE ALSO
       ci(1), co(1), rcs(1), rcsdiff(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.

       The  full  documentation  for  RCS is maintained as a Texinfo manual.  If the info(1) and RCS
       programs are properly installed at your site, the command

              info rcs

       should give you access to the complete manual.  Additionally, the RCS homepage:

              http://www.gnu.org/software/rcs/

       has news and links to the latest release, development site, etc.



GNU RCS 5.10.1                               2022-02-19                                     IDENT(1)