unget

SYNOPSIS
       unget [-ns][-r SID] file...

DESCRIPTION
       The  unget  utility  shall reverse the effect of a get -e done prior to
       creating the intended new delta.

OPTIONS
       The unget utility shall conform  to  the  Base  Definitions  volume  of
       IEEE Std 1003.1-2001, Section 12.2, Utility Syntax Guidelines.

       The following options shall be supported:

       -r  SID
              Uniquely identify which delta is no longer intended. (This would
              have been specified by get as the new delta.) The  use  of  this
              option is necessary only if two or more outstanding get commands
              for editing on the same SCCS file were done by the  same  person
              (login name).

       -s     Suppress  the writing to standard output of the intended delta's
              SID.

       -n     Retain the file that was obtained by get, which  would  normally
              be removed from the current directory.


OPERANDS
       The following operands shall be supported:

       file   A pathname of an existing SCCS file or a directory. If file is a
              directory, the unget 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
              s.) 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 shall be 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
       Any SCCS files processed shall be files of an unspecified format.

ENVIRONMENT VARIABLES
       The following environment  variables  shall  affect  the  execution  of
       unget:
              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
       The standard output shall consist of a line for each file, in the  fol-
       lowing format:


              "%s\n", <SID removed from file>

       If  there  is  more  than  one named file or if a directory or standard
       input is named, each pathname shall be written before each of the  pre-
       ceding lines:


              "\n%s:\n", <pathname>

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

OUTPUT FILES
       Any  SCCS files updated shall be files of an unspecified format. During
       processing of a file, a locking z-file, as described in get, and  a  q-
       file (a working copy of the p-file), may be created and deleted. The p-
       file and g-file, as described in get, shall be 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.

SEE ALSO
       delta , get , sact

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 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 .



IEEE/The Open Group                  2003                             UNGET(P)