RMDEL(1)                   POSIX Programmer's Manual                  RMDEL(1)



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

NAME
       rmdel -- remove a delta from an SCCS file (DEVELOPMENT)

SYNOPSIS
       rmdel -r SID file...

DESCRIPTION
       The rmdel utility shall remove the delta specified by the SID from each
       named SCCS file. The delta to be removed shall be the most recent delta
       in its branch in the delta chain of each named SCCS file. In addition,
       the application shall ensure that the SID specified is not that of a
       version being edited for the purpose of making a delta; that is, if a
       p-file (see get) exists for the named SCCS file, the SID specified
       shall not appear in any entry of the p-file.

       Removal of a delta shall be restricted to:

        1. The user who made the delta

        2. The owner of the SCCS file

        3. The owner of the directory containing the SCCS file

OPTIONS
       The rmdel utility shall conform to the Base Definitions volume of
       POSIX.1-2017, Section 12.2, Utility Syntax Guidelines.

       The following option shall be supported:

       -r SID    Specify the SCCS identification string (SID) of the delta to
                 be deleted.

OPERANDS
       The following operand shall be supported:

       file      A pathname of an existing SCCS file or a directory. If file
                 is a directory, the rmdel utility shall behave as though each
                 file in the directory were specified as a named file, except
                 that non-SCCS files (last component of the pathname does not
                 begin with ss..)  and unreadable files shall be silently
                 ignored.

                 If exactly one file operand appears, and it is ''--'', the
                 standard input shall be read; each line of the standard input
                 is taken to be the name of an SCCS file to be processed. Non-
                 SCCS files and unreadable files shall be silently ignored.

STDIN
       The standard input shall be a text file used only when the file operand
       is specified as ''--''.  Each line of the text file shall be interpreted
       as an SCCS pathname.

INPUT FILES
       The SCCS files shall be files of unspecified format.

ENVIRONMENT VARIABLES
       The following environment variables shall affect the execution of
       rmdel:

       LANG      Provide a default value for the internationalization
                 variables that are unset or null. (See the Base Definitions
                 volume of POSIX.1-2017, Section 8.2, Internationalization
                 Variables for the precedence of internationalization
                 variables used to determine the values of locale categories.)

       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
                 files).

       LC__MESSAGES
                 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.

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       Not used.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       The SCCS files shall be files of unspecified format. During processing
       of a file, a temporary x-file, as described in admin, may be created
       and deleted; a locking z-file, as described in get, may be created and
       deleted.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       admin, delta, get, prs

       The Base Definitions volume of POSIX.1-2017, Chapter _8, Environment
       Variables, Section 12.2, Utility Syntax Guidelines

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 by the
       Institute of Electrical and Electronics Engineers, Inc and The Open
       Group.  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 http://www.opengroup.org/unix/online.html .

       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
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                             RMDEL(1)
