sccs(1p) — Linux manual page


SCCS(1P)                  POSIX Programmer's Manual                 SCCS(1P)

PROLOG         top

       This manual page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior), or
       the interface may not be implemented on Linux.

NAME         top

       sccs — front end for the SCCS subsystem (DEVELOPMENT)

SYNOPSIS         top

       sccs [−r] [−d path] [−p path] command [options...] [operands...]

DESCRIPTION         top

       The sccs utility is a front end to the SCCS programs. It also
       includes the capability to run set-user-id to another user to provide
       additional protection.

       The sccs utility shall invoke the specified command with the
       specified options and operands.  By default, each of the operands
       shall be modified by prefixing it with the string "SCCS/s.".

       The command can be the name of one of the SCCS utilities in this
       volume of POSIX.1‐2008 (admin, delta, get, prs, rmdel, sact, unget,
       val, or what) or one of the pseudo-utilities listed in the EXTENDED
       DESCRIPTION section.

OPTIONS         top

       The sccs utility shall conform to the Base Definitions volume of
       POSIX.1‐2008, Section 12.2, Utility Syntax Guidelines, except that
       options operands are actually options to be passed to the utility
       named by command.  When the portion of the command:

           command [options ... ] [operands ... ]

       is considered, all of the pseudo-utilities used as command shall
       support the Utility Syntax Guidelines. Any of the other SCCS
       utilities that can be invoked in this manner support the Guidelines
       to the extent indicated by their individual OPTIONS sections.

       The following options shall be supported preceding the command

       −d path   A pathname of a directory to be used as a root directory
                 for the SCCS files. The default shall be the current
                 directory. The −d option shall take precedence over the
                 PROJECTDIR variable. See −p.

       −p path   A pathname of a directory in which the SCCS files are
                 located. The default shall be the SCCS directory.

                 The −p option differs from the −d option in that the −d
                 option-argument shall be prefixed to the entire pathname
                 and the −p option-argument shall be inserted before the
                 final component of the pathname. For example:

                     sccs −d /x −p y get a/b

                 converts to:

                     get /x/a/y/s.b

                 This allows the creation of aliases such as:

                     alias syssccs="sccs −d /usr/src"

                 which is used as:

                     syssccs get cmd/who.c

       −r        Invoke command with the real user ID of the process, not
                 any effective user ID that the sccs utility is set to.
                 Certain commands (admin, check, clean, diffs, info, rmdel,
                 and tell) 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.

OPERANDS         top

       The following operands shall be supported:

       command   An SCCS utility name or the name of one of the pseudo-
                 utilities listed in the EXTENDED DESCRIPTION section.

       options   An option or option-argument to be passed to command.

       operands  An operand to be passed to command.

STDIN         top

       See the utility description for the specified command.

INPUT FILES         top

       See the utility description for the specified command.


       The following environment variables shall affect the execution of

       LANG      Provide a default value for the internationalization
                 variables that are unset or null. (See the Base Definitions
                 volume of POSIX.1‐2008, Section 8.2, Internationalization
                 Variables for the precedence of internationalization
                 variables used to determine the values of locale

       LC_ALL    If set to a non-empty string value, override the values of
                 all the other internationalization variables.

       LC_CTYPE  Determine the locale for the interpretation of sequences of
                 bytes of text data as characters (for example, single-byte
                 as opposed to multi-byte characters in arguments and input

                 Determine the locale that should be used to affect the
                 format and contents of diagnostic messages written to
                 standard error.

       NLSPATH   Determine the location of message catalogs for the
                 processing of LC_MESSAGES.

                 Provide a default value for the −d path option. If the
                 value of PROJECTDIR begins with a <slash>, it shall be
                 considered an absolute pathname; otherwise, the value of
                 PROJECTDIR is treated as a user name and that user's
                 initial working directory shall be examined for a
                 subdirectory src or source.  If such a directory is found,
                 it shall be used. Otherwise, the value shall be used as a
                 relative pathname.

       Additional environment variable effects may be found in the utility
       description for the specified command.



STDOUT         top

       See the utility description for the specified command.

STDERR         top

       See the utility description for the specified command.

OUTPUT FILES         top

       See the utility description for the specified command.


       The following pseudo-utilities shall be supported as command
       operands. All options referred to in the following list are values
       given in the options operands following command.

       check   Equivalent to info, except that nothing shall be printed if
               nothing is being edited, and a non-zero exit status shall be
               returned if anything is being edited. The intent is to have
               this included in an ``install'' entry in a makefile to ensure
               that everything is included into the SCCS file before a
               version is installed.

       clean   Remove everything from the current directory that can be
               recreated from SCCS files, but do not remove any files being
               edited. If the −b option is given, branches shall be ignored
               in the determination of whether they are being edited; this
               is dangerous if branches are kept in the same directory.

       create  Create an SCCS file, taking the initial contents from the
               file of the same name. Any options to admin are accepted. If
               the creation is successful, the original files shall be
               renamed by prefixing the basenames with a comma. These
               renamed files should be removed after it has been verified
               that the SCCS files have been created successfully.

       delget  Perform a delta on the named files and then get new versions.
               The new versions shall have ID keywords expanded and shall
               not be editable. Any −m, −p, −r, −s, and −y options shall be
               passed to delta, and any −b, −c, −e, −i, −k, −l, −s, and −x
               options shall be passed to get.

       deledit Equivalent to delget, except that the get phase shall include
               the −e option. This option is useful for making a checkpoint
               of the current editing phase. The same options shall be
               passed to delta as described above, and all the options
               listed for get above except −e shall be passed to edit.

       diffs   Write a difference listing between the current version of the
               files checked out for editing and the versions in SCCS
               format. Any −r, −c, −i, −x, and −t options shall be passed to
               get; any −l, −s, −e, −f, −h, and −b options shall be passed
               to diff.  A −C option shall be passed to diff as −c.

       edit    Equivalent to get −e.

       fix     Remove the named delta, but leave a copy of the delta with
               the changes that were in it. It is useful for fixing small
               compiler bugs, and so on. The application shall ensure that
               it is followed by a −r SID option. Since fix does not leave
               audit trails, it should be used carefully.

       info    Write a listing of all files being edited. If the −b option
               is given, branches (that is, SIDs with two or fewer
               components) shall be ignored. If a −u user option is given,
               then only files being edited by the named user shall be
               listed. A −U option shall be equivalent to −u<current user>.

       print   Write out verbose information about the named files,
               equivalent to sccs prs.

       tell    Write a <newline>-separated list of the files being edited to
               standard output. Takes the −b, −u, and −U options like info
               and check.

       unedit  This is the opposite of an edit or a get −e.  It should be
               used with caution, since any changes made since the get are

EXIT STATUS         top

       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.



       The following sections are informative.


       Many of the SCCS utilities take directory names as operands as well
       as specific filenames. The pseudo-utilities supported by sccs are not
       described as having this capability, but are not prohibited from
       doing so.

EXAMPLES         top

        1. 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

        2. To get a file from another directory:

               sccs −p /usr/src/sccs/s. get cc.c


               sccs get /usr/src/sccs/

        3. To make a delta of a large number of files in the current

               sccs delta *.c

        4. To get a list of files being edited that are not on branches:

               sccs info −b

        5. To delta everything being edited by the current user:

               sccs delta $(sccs tell −U)

        6. In a makefile, to get source files from an SCCS file if it does
           not already exist:

               SRCS = <list of source files>
                   sccs get $(REL) $@

RATIONALE         top

       sccs and its associated utilities are part of the XSI Development
       Utilities option within the XSI option.

       SCCS is an abbreviation for Source Code Control System. It is a
       maintenance and enhancement tracking tool. When a file is put under
       SCCS, the source code control system maintains the file and, when
       changes are made, identifies and stores them in the file with the
       original source code and/or documentation. As other changes are made,
       they too are identified and retained in the file.

       Retrieval of the original and any set of changes is possible. Any
       version of the file as it develops can be reconstructed for
       inspection or additional modification. History data can be stored
       with each version, documenting why the changes were made, who made
       them, and when they were made.



SEE ALSO         top

       admin(1p), delta(1p), get(1p), make(1p), prs(1p), rmdel(1p),
       sact(1p), unget(1p), val(1p), what(1p)

       The Base Definitions volume of POSIX.1‐2008, Chapter 8, Environment
       Variables, Section 12.2, Utility Syntax Guidelines

COPYRIGHT         top

       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The Open
       Group Base Specifications Issue 7, Copyright (C) 2013 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1
       applied.) In the event of any discrepancy between this version and
       the original IEEE and The Open Group Standard, the original IEEE and
       The Open Group Standard is the referee document. The original
       Standard can be obtained online at .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the
       source files to man page format. To report such errors, see .

IEEE/The Open Group                 2013                            SCCS(1P)

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