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@(#)sccs.1 2.6 (Berkeley) 07/22/89

C 7 C 5 sccs - front end for the \s-1SCCS\s0 subsystem sccs [ -r ] [ -d path ] [ -p path ] command [ flags ] [ args ] Sccs is a front end to the SCCS programs that helps them mesh more cleanly with the rest of UNIX. It also includes the capability to run ``set user id'' to another user to provide additional protection.

Basically, sccs runs the command with the specified flags and args. Each argument is normally modified to be prepended with ``SCCS/s.''.

Flags to be interpreted by the sccs program must be before the command argument. Flags to be passed to the actual SCCS program must come after the command argument. These flags are specific to the command and are discussed in the documentation for that command.

Besides the usual SCCS commands, several ``pseudo-commands'' can be issued. These are:

Equivalent to ``get -e''. Perform a delta on the named files and then get new versions. The new versions will have id keywords expanded, and will not be editable. The -m, -p, -r, -s, and -y flags will be passed to delta, and the -b, -c, -e, -i, -k, -l, -s, and -x flags will be passed to get. Equivalent to ``delget'' except that the ``get'' phase includes the ``-e'' flag. This option is useful for making a ``checkpoint'' of your current editing phase. The same flags will be passed to delta as described above, and all the flags listed for ``get'' above except -e and -k are passed to ``edit''. Creates an SCCS file, taking the initial contents from the file of the same name. Any flags to ``admin'' are accepted. If the creation is successful, the files are renamed with a comma on the front. These should be removed when you are convinced that the SCCS files have been created successfully. Must be followed by a -r flag. This command essentially removes the named delta, but leaves you with a copy of the delta with the changes that were in it. It is useful for fixing small compiler bugs, etc. Since it doesn't leave audit trails, it should be used carefully. This routine removes everything from the current directory that can be recreated from SCCS files. It will not remove any files being edited. If the -b flag is given, branches are ignored in the determination of whether they are being edited; this is dangerous if you are keeping the branches in the same directory. This is the opposite of an ``edit'' or a ``get -e''. It should be used with extreme caution, since any changes you made since the get will be irretrievably lost. Gives a listing of all files being edited. If the -b flag is given, branches (i.e., \s-1SID\s0's with two or fewer components) are ignored. If the -u flag is given (with an optional argument) then only files being edited by you (or the named user) are listed. Like ``info'' except that nothing is printed if nothing is being edited, and a non-zero exit status is returned if anything is being edited. The intent is to have this included in an ``install'' entry in a makefile to insure that everything is included into the SCCS file before a version is installed. Gives a newline-separated list of the files being edited on the standard output. Takes the -b and -u flags like ``info'' and ``check''. Gives a ``diff'' listing between the current version of the program(s) you have out for editing and the versions in SCCS format. The -r, -c, -i, -x, and -t flags are passed to get\c ; the -l, -s, -e, -f, -h, and -b options are passed to diff. The -C flag is passed to diff as -c. This command prints out verbose information about the named files.

The -r flag runs sccs as the real user rather than as whatever effective user sccs is ``set user id'' to. The -d flag gives a root directory for the SCCS files. The default is the current directory. The -p flag defines the pathname of the directory in which the SCCS files will be found; ``SCCS'' is the default. The -p flag differs from the -d flag in that the -d argument is prepended to the entire pathname and the -p argument is inserted before the final component of the pathname. For example, ``sccs -d/x -py get a/b'' will convert to ``get /x/a/y/s.b''. The intent here is to create aliases such as ``alias syssccs sccs -d/usr/src'' which will be used as ``syssccs get cmd/who.c''. Also, if the environment variable PROJECT is set, its value is used to determine the -d flag. If it begins with a slash, it is taken directly; otherwise, the home directory of a user of that name is examined for a subdirectory ``src'' or ``source''. If such a directory is found, it is used.

Certain commands (such as admin ) cannot be run ``set user id'' by all users, since this would allow anyone to change the authorizations. These commands are always run as the real user.

..

.. To get a file for editing, edit it, and produce a new delta: sccs get -e file.c ex file.c sccs delta file.c .EX To get a file from another directory: sccs -p/usr/src/sccs/s. get cc.c .EX or sccs get /usr/src/sccs/s.cc.c .EX To make a delta of a large number of files in the current directory: sccs delta *.c .EX To get a list of files being edited that are not on branches: sccs info -b .EX To delta everything being edited by you: sccs delta \`sccs tell -u\` .EX In a makefile, to get source files from an SCCS file if it does not already exist: SRCS = <list of source files> $(SRCS): sccs get $(REL) $@ .EX

admin(SCCS), chghist(SCCS), comb(SCCS), delta(SCCS), get(SCCS), help(SCCS), prt(SCCS), rmdel(SCCS), sccsdiff(SCCS), what(SCCS)

Eric Allman, .ul An Introduction to the Source Code Control System

It should be able to take directory arguments on pseudo-commands like the SCCS commands do.