AWK instead of Shell script Post: 302164640

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rcsclean

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
       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 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 working files in the current directory are cleaned.   Pathnames  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.

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: 1.12; Release Date: 1993/11/03.
       Copyright (C) 1982, 1988, 1989 Walter F. Tichy.
       Copyright (C) 1990, 1991, 1992, 1993 Paul Eggert.

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 provide the needed directory scanning operations.

GNU
								    1993/11/03							       RCSCLEAN(1)