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RCS(1L) UNKNOWN SECTION OF THE MANUAL RCS(1L)
NAME
rcs - change RCS file attributes
SYNOPSIS
rcs [ options ] file ...
DESCRIPTION
_R_c_s creates new RCS files or changes attributes of existing
ones. An RCS file contains multiple revisions of text, an
access list, a change log, descriptive text, and some con-
trol attributes. For _r_c_s 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 -i option is present.
Files ending in `,v' are RCS files, all others are working
files. If a working file is given, _r_c_s tries to find the
corresponding RCS file first in directory ./RCS and then in
the current directory, as explained in _c_o(1L).
-i creates and initializes a new RCS file, but does
not deposit any revision. If the RCS file has no
path prefix, _r_c_s tries to place it first into the
subdirectory ./RCS, and then into the current
directory. If the RCS file already exists, an
error message is printed.
-a_l_o_g_i_n_s appends the login names appearing in the comma-
separated list _l_o_g_i_n_s to the access list of the
RCS file.
-A_o_l_d_f_i_l_e appends the access list of _o_l_d_f_i_l_e to the access
list of the RCS file.
-e[_l_o_g_i_n_s] erases the login names appearing in the comma-
separated list _l_o_g_i_n_s from the access list of the
RCS file. If _l_o_g_i_n_s is omitted, the entire
access list is erased.
-b[_r_e_v] sets the default branch to _r_e_v. If _r_e_v is omit-
ted, the default branch is reset to the (dynami-
cally) highest branch on the trunk.
-c_s_t_r_i_n_g sets the comment leader to _s_t_r_i_n_g. The comment
leader is printed before every log message line
generated by the keyword $Log$ during checkout
(see _c_o(1L)). This is useful for programming
languages without multi-line comments. During rcs
-i or initial ci, the comment leader is guessed
from the suffix of the working file.
-l[_r_e_v] locks the revision with number _r_e_v. If a branch
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RCS(1L) UNKNOWN SECTION OF THE MANUAL RCS(1L)
is given, the latest revision on that branch is
locked. If _r_e_v is omitted, the latest revision
on the default branch is locked. Locking
prevents overlapping changes. A lock is removed
with ci or rcs -u (see below).
-u[_r_e_v] unlocks the revision with number _r_e_v. If a
branch is given, the latest revision on that
branch is unlocked. If _r_e_v is omitted, the
latest lock held by the caller is removed. Nor-
mally, 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 com-
mentary is terminated with a line containing a
single `.' or control-D.
-L sets locking to _s_t_r_i_c_t. Strict locking means that
the owner of an RCS file is not exempt from lock-
ing for checkin. This option should be used for
files that are shared.
-U sets locking to non-strict. Non-strict locking
means that the owner of a file need not lock a
revision for checkin. This option should NOT be
used for files that are shared. The default (-L
or -U) is determined by your system administra-
tor.
-n_n_a_m_e[:_r_e_v]
associates the symbolic name _n_a_m_e with the branch
or revision _r_e_v. _R_c_s prints an error message if
_n_a_m_e is already associated with another number.
If _r_e_v is omitted, the symbolic name is deleted.
-N_n_a_m_e[:_r_e_v]
same as -n, except that it overrides a previous
assignment of _n_a_m_e.
-o_r_a_n_g_e deletes ("outdates") the revisions given by
_r_a_n_g_e. 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 _r_e_v_1-_r_e_v_2 means
revisions _r_e_v_1 to _r_e_v_2 on the same branch, -_r_e_v
means from the beginning of the branch containing
_r_e_v up to and including _r_e_v, and _r_e_v- means from
revision _r_e_v to the end of the branch containing
_r_e_v. None of the outdated revisions may have
branches or locks.
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RCS(1L) UNKNOWN SECTION OF THE MANUAL RCS(1L)
-q quiet mode; diagnostics are not printed.
-s_s_t_a_t_e[:_r_e_v]
sets the state attribute of the revision _r_e_v to
_s_t_a_t_e. If _r_e_v is a branch number, the latest
revision on that branch is assumed. If _r_e_v is
omitted, the latest revision on the default
branch is assumed. Any identifier is acceptable
for _s_t_a_t_e. A useful set of states is _E_x_p (for
experimental), _S_t_a_b (for stable), and _R_e_l (for
released). By default, _c_i(1L) sets the state of
a revision to _E_x_p.
-t[_t_x_t_f_i_l_e]
writes descriptive text into the RCS file
(deletes the existing text). If _t_x_t_f_i_l_e is omit-
ted, _r_c_s prompts the user for text supplied from
the standard input, terminated with a line con-
taining a single `.' or control-D. Otherwise,
the descriptive text is copied from the file
_t_x_t_f_i_l_e. If the -i option is present, descrip-
tive text is requested even if -t is not given.
The prompt is suppressed if the standard input is
not a terminal.
DIAGNOSTICS
The RCS file name and the revisions outdated are written to
the diagnostic output. The exit status always refers to the
last RCS file operated upon, and is 0 if the operation was
successful, 1 otherwise.
FILES
The caller of the command must have read/write permission
for the directory containing the RCS file and read permis-
sion for the RCS file itself. _R_c_s creates a semaphore file
in the same directory as the RCS file to prevent simultane-
ous update. For changes, _r_c_s always creates a new file. On
successful completion, _r_c_s deletes the old one and renames
the new one. This strategy makes links to RCS files use-
less.
IDENTIFICATION
Author: Walter F. Tichy, Purdue University, West Lafayette,
IN, 47907.
Revision Number: 1.3 ; Release Date: 89/05/02 .
Copyright c 1982, 1988, 1989 by Walter F. Tichy.
SEE ALSO
co(1L), ci(1L), ident(1L), rcsdiff(1L), rcsintro(1L),
rcsmerge(1L), rlog(1L), rcsfile(5L)
Walter F. Tichy, "Design, Implementation, and Evaluation of
a Revision Control System," in _P_r_o_c_e_e_d_i_n_g_s _o_f _t_h_e _6_t_h
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RCS(1L) UNKNOWN SECTION OF THE MANUAL RCS(1L)
_I_n_t_e_r_n_a_t_i_o_n_a_l _C_o_n_f_e_r_e_n_c_e _o_n _S_o_f_t_w_a_r_e _E_n_g_i_n_e_e_r_i_n_g, IEEE,
Tokyo, Sept. 1982.
Purdue University Last change: 4