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RCSCLEAN(1) General Commands Manual 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 corresponding RCS file. If it finds a difference, it does noth-
ing. 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 corresponding rcs -u and rm -f commands on the standard output.
Files are paired as explained in ci(1). If no file is given, all work-
ing 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 num-
ber 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 rcsd-
iff(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 revi-
sion 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 actu-
ally 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 sup-
press 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 key-
word 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. Use-
ful RCSINIT options include -q, -V, -x, and -z.
RCS_MEM_LIMIT
An integer lim, measured in kilobytes, specifying the threshold
under which commands 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 rou-
tines.) 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: 5.8; Release Date: 2011-08-30.
Copyright (C) 2010, 2011 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), 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.
BUGS
At least one file must be given in older Unix versions that do not pro-
vide the needed directory scanning operations.
GNU RCS 5.8 2011-08-30 RCSCLEAN(1)
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