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RCSCLEAN(1)									      RCSCLEAN(1)

NAME
       rcsclean - clean up working files

SYNOPSIS
       rcsclean [options] [ file ... ]

DESCRIPTION
       rcsclean removes files that are not being worked on.  rcsclean -u also unlocks and removes
       files that are being worked on but have not changed.

       For each file given, rcsclean compares the working file and a revision in the  correspond-
       ing RCS file.  If it finds a difference, it does nothing.  Otherwise, it first unlocks the
       revision if the -u option is given, and then removes the working file unless  the  working
       file is writable and the revision is locked.  It logs its actions by outputting the corre-
       sponding rcs -u and rm -f commands on the standard output.

       Files are paired as explained in ci(1).	If no file is given, all  working  files  in  the
       current	directory  are	cleaned.   Filenames matching an RCS suffix denote RCS files; all
       others denote working files.

       The number of the revision to which the working file is compared may be attached to any of
       the  options -n, -q, -r, or -u.	If no revision number is specified, then if the -u option
       is given and the caller has one revision locked, rcsclean uses  that  revision;	otherwise
       rcsclean uses the latest revision on the default branch, normally the root.

       rcsclean  is useful for clean targets in makefiles.  See also rcsdiff(1), which prints out
       the differences, and ci(1), which normally reverts to the previous revision if a file  was
       not changed.

OPTIONS
       -ksubst
	      Use  subst  style keyword substitution when retrieving the revision for comparison.
	      See co(1) for details.

       -n[rev]
	      Do not actually remove any files or unlock any revisions.  Using this  option  will
	      tell you what rcsclean would do without actually doing it.

       -q[rev]
	      Do not log the actions taken on standard output.

       -r[rev]
	      This option has no effect other than specifying the revision for comparison.

       -T     Preserve the modification time on the RCS file even if the RCS file changes because
	      a lock is removed.  This option can suppress extensive recompilation  caused  by	a
	      make(1)  dependency  of  some  other copy of the working file on the RCS file.  Use
	      this option with care; it can suppress recompilation even when it is  needed,  i.e.
	      when  the  lock removal would mean a change to keyword strings in the other working
	      file.

       -u[rev]
	      Unlock the revision if it is locked and no difference is found.

       -V     Print RCS's version number.

       -Vn    Emulate RCS version n.  See co(1) for details.

       -xsuffixes
	      Use suffixes to characterize RCS files.  See ci(1) for details.

       -zzone Use zone as the time zone for keyword substitution; see co(1) for details.

EXAMPLES
	      rcsclean	*.c  *.h

       removes all working files ending in .c or .h that were not changed since their checkout.

	      rcsclean

       removes all working files in the current directory  that  were  not  changed  since  their
       checkout.

FILES
       rcsclean accesses files much as ci(1) does.

ENVIRONMENT
       RCSINIT
	      Options  prepended  to the argument list, separated by spaces.  A backslash escapes
	      spaces within an option.	The RCSINIT options are prepended to the  argument  lists
	      of most RCS commands.  Useful RCSINIT options include -q, -V, -x, and -z.

       RCS_MEM_LIMIT
	      An  integer  lim,  measured in kilobytes, specifying the threshold under which com-
	      mands will try to use memory-based operations for processing the	RCS  file.   (For
	      RCS  files  of  size  lim  kilobytes  or	greater, RCS will use the slower standard
	      input/output routines.)  Default value is 256.

       TMPDIR Name of the temporary directory.	If not set, the  environment  variables  TMP  and
	      TEMP  are inspected instead and the first value found is taken; if none of them are
	      set, a host-dependent default is used, typically /tmp.

DIAGNOSTICS
       The exit status is zero if and only if all operations were  successful.	 Missing  working
       files and RCS files are silently ignored.

IDENTIFICATION
       Author: Walter F. Tichy.
       Manual Page Revision: 5.9.0; Release Date: 2014-06-10.
       Copyright (C) 2010-2013 Thien-Thi Nguyen.
       Copyright (C) 1990, 1991, 1992, 1993 Paul Eggert.
       Copyright (C) 1982, 1988, 1989 Walter F. Tichy.

SEE ALSO
       ci(1), co(1), ident(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.

BUGS
       At  least  one  file  must  be given in older Unix versions that do not provide the needed
       directory scanning operations.

GNU RCS 5.9.0				    2014-06-10				      RCSCLEAN(1)
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