IDENT(1)                  USER COMMANDS                  IDENT(1)

     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 pat­
     terns in a file.  The option -V prints ident's version  num­

     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 exam­
     ple 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 appended.

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

          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 with­
          out a path.

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

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

          The  symbolic  name  used to check out the revision, if

          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.

GNU                  Last change: 1993/11/09                    1