rcs.1

早期freebsd实现

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.Id $Id: rcs.1,v 5.6 1991/09/26 23:16:17 eggert Exp $
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.TH RCS 1 \*(Dt GNU
.SH NAME
rcs \- change RCS file attributes
.SH SYNOPSIS
.B rcs
.RI [ " options " ] " file " .\|.\|.
.SH DESCRIPTION
.B rcs
creates new \*r files or changes attributes of existing ones.
An \*r file contains multiple revisions of text,
an access list, a change log,
descriptive text,
and some control attributes.
For
.B rcs
to work, the caller's login name must be on the access list,
except if the access list is empty, the caller is the owner of the file
or the superuser, or
the
.B \-i
option is present.
.PP
Pathnames matching an \*r suffix denote \*r files;
all others denote working files.
Names are paired as explained in
.BR ci (1).
Revision numbers use the syntax described in
.BR ci (1).
.SH OPTIONS
.TP
.B \-i
Create and initialize a new \*r file, but do not deposit any revision.
If the \*r file has no path prefix, try to place it
first into the subdirectory
.BR ./RCS ,
and then into the current directory.
If the \*r file
already exists, print an error message.
.TP
.BI \-a "logins"
Append the login names appearing in the comma-separated list
.I logins
to the access list of the \*r file.
.TP
.BI \-A "oldfile"
Append the access list of
.I oldfile
to the access list of the \*r file.
.TP
.BR \-e [\f2logins\fP]
Erase the login names appearing in the comma-separated list
.I logins
from the access list of the \*r file.
If
.I logins
is omitted, erase the entire access list.
.TP
.BR \-b [\f2rev\fP]
Set the default branch to
.IR rev .
If
.I rev
is omitted, the default
branch is reset to the (dynamically) highest branch on the trunk.
.TP
.BI \-c string
sets the comment leader to
.IR string .
The comment leader
is printed before every log message line generated by the keyword
.B $\&Log$
during checkout (see
.BR co (1)).
This is useful for programming
languages without multi-line comments.
An initial
.B ci ,
or an
.B "rcs\ \-i"
without
.BR \-c ,
guesses the comment leader from the suffix of the working file.
.TP
.BI \-k subst
Set the default keyword substitution to
.IR subst .
The effect of keyword substitution is described in
.BR co (1).
Giving an explicit
.B \-k
option to
.BR co ,
.BR rcsdiff ,
and
.B rcsmerge
overrides this default.
Beware
.BR "rcs\ \-kv",
because
.B \-kv
is incompatible with
.BR "co\ \-l".
Use
.B "rcs\ \-kkv"
to restore the normal default keyword substitution.
.TP
.BR \-l [\f2rev\fP]
Lock the revision with number
.IR rev .
If a branch is given, lock the latest revision on that branch.
If
.I rev
is omitted, lock the latest revision on the default branch.
Locking prevents overlapping changes.
A lock is removed with
.B ci
or
.B "rcs\ \-u"
(see below).
.TP
.BR \-u [\f2rev\fP]
Unlock the revision with number
.IR rev .
If a branch is given, unlock the latest revision on that branch.
If
.I rev
is omitted, remove the latest lock held by the caller.
Normally, only the locker of a revision may unlock it.
Somebody else unlocking a revision breaks the lock.
This causes a mail message to be sent to the original locker.
The message contains a commentary solicited from the breaker.
The commentary is terminated by end-of-file or by a line containing
.BR \&. "\ by"
itself.
.TP
.B \-L
Set locking to
.IR strict .
Strict locking means that the owner
of an \*r file is not exempt from locking for checkin.
This option should be used for files that are shared.
.TP
.B \-U
Set locking to non-strict.  Non-strict locking means that the owner of
a file need not lock a revision for checkin.
This option should
.I not
be used for files that are shared.
Whether default locking is strict is determined by your system administrator,
but it is normally strict.
.TP
\f3\-m\fP\f2rev\fP\f3:\fP\f2msg\fP
Replace revision
.IR rev 's
log message with
.IR msg .
.TP
\f3\-n\fP\f2name\fP[\f3:\fP[\f2rev\fP]]
Associate the symbolic name
.I name
with the branch or
revision
.IR rev .
Delete the symbolic name if both
.B :
and
.I rev
are omitted; otherwise, print an error message if
.I name
is already associated with
another number.
If
.I rev
is symbolic, it is expanded before association.
A
.I rev
consisting of a branch number followed by a
.B .\&
stands for the current latest revision in the branch.
A
.B :
with an empty
.I rev
stands for the current latest revision on the default branch,
normally the trunk.
For example,
.BI "rcs\ \-n" name ":\ RCS/*"
associates
.I name
with the current latest revision of all the named \*r files;
this contrasts with
.BI "rcs\ \-n" name ":$\ RCS/*"
which associates
.I name
with the revision numbers extracted from keyword strings
in the corresponding working files.
.TP
\f3\-N\fP\f2name\fP[\f3:\fP[\f2rev\fP]]
Act like
.BR \-n ,
except override any previous assignment of
.IR name .
.TP
.BI \-o range
deletes (\*(lqoutdates\*(rq) the revisions given by
.IR range .
A range consisting of a single revision number means that revision.
A range consisting of a branch number means the latest revision on that
branch.
A range of the form
.IB rev1 : rev2
means
revisions
.I rev1
to
.I rev2
on the same branch,
.BI : rev
means from the beginning of the branch containing
.I rev
up to and including
.IR rev ,
and
.IB rev :
means
from revision
.I rev
to the end of the branch containing
.IR rev .
None of the outdated revisions may have branches or locks.
.TP
.B \-q
Run quietly; do not print diagnostics.
.TP
.B \-I
Run interactively, even if the standard input is not a terminal.
.TP
.B \-s\f2state\fP\f1[\fP:\f2rev\fP\f1]\fP
Set the state attribute of the revision
.I rev
to
.I state .
If
.I rev
is a branch number, assume the latest revision on that branch.
If
.I rev
is omitted, assume the latest revision on the default branch.
Any identifier is acceptable for
.IR state .
A useful set of states
is
.B Exp
(for experimental),
.B Stab
(for stable), and
.B Rel
(for
released).
By default,
.BR ci (1)
sets the state of a revision to
.BR Exp .
.TP
.BR \-t [\f2file\fP]
Write descriptive text from the contents of the named
.I file
into the \*r file, deleting the existing text.
The
.IR file
pathname may not begin with
.BR \- .
If
.I file
is omitted, obtain the text from standard input,
terminated by end-of-file or by a line containing
.BR \&. "\ by"
itself.
Prompt for the text if interaction is possible; see
.BR \-I .
With
.BR \-i ,
descriptive text is obtained
even if
.B \-t
is not given.
.TP
.BI \-t\- string
Write descriptive text from the
.I string
into the \*r file, deleting the existing text.
.TP
.BI \-V n
Emulate \*r version
.IR n .
See
.BR co (1)
for details.
.TP
.BI \-x "suffixes"
Use
.I suffixes
to characterize \*r files.
See
.BR ci (1)
for details.
.SH COMPATIBILITY
The
.BI \-b rev
option generates an \*r file that cannot be parsed by \*r version 3 or earlier.
.PP
The
.BI \-k subst
options (except
.BR \-kkv )
generate an \*r file that cannot be parsed by \*r version 4 or earlier.
.PP
Use
.BI "rcs \-V" n
to make an \*r file acceptable to \*r version
.I n
by discarding information that would confuse version
.IR n .
.PP
\*r version 5.5 and earlier does not support the
.B \-x
option, and requires a
.B ,v
suffix on an \*r pathname.
.SH FILES
.B rcs
accesses files much as
.BR ci (1)
does,
except that it uses the effective user for all accesses,
it does not write the working file or its directory,
and it does not even read the working file unless a revision number of
.B $
is specified.
.SH ENVIRONMENT
.TP
.B \s-1RCSINIT\s0
options prepended to the argument list, separated by spaces.
See
.BR ci (1)
for details.
.SH DIAGNOSTICS
The \*r pathname and the revisions outdated are written to
the diagnostic output.
The exit status is zero if and only if all operations were successful.
.SH IDENTIFICATION
Author: Walter F. Tichy.
.br
Revision Number: \*(Rv; Release Date: \*(Dt.
.br
Copyright \(co 1982, 1988, 1989 by Walter F. Tichy.
.br
Copyright \(co 1990, 1991 by Paul Eggert.
.SH "SEE ALSO"
co(1), ci(1), ident(1), rcsdiff(1), rcsintro(1), rcsmerge(1), rlog(1),
rcsfile(5)
.br
Walter F. Tichy,
\*r\*-A System for Version Control,
.I "Software\*-Practice & Experience"
.BR 15 ,
7 (July 1985), 637-654.
.SH BUGS
The separator for revision ranges in the
.B \-o
option used to be
.B \-
instead of
.BR : ,
but this leads to confusion when symbolic names contain
.BR \- .
For backwards compatibility
.B "rcs \-o"
still supports the old
.B \-
separator, but it warns about this obsolete use.
.PP
Symbolic names need not refer to existing revisions or branches.
For example, the
.B \-o
option does not remove symbolic names for the outdated revisions; you must use
.B \-n
to remove the names.
.br