PROLOG

       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

       sact — print current SCCS file-editing activity (DEVELOPMENT)

SYNOPSIS

       sact file...

DESCRIPTION

       The  sact  utility  shall  inform the user of any impending deltas to a named SCCS file by
       writing a list to standard output. This situation occurs when get  -e  has  been  executed
       previously without a subsequent execution of delta, unget, or sccs unedit.

OPTIONS

       None.

OPERANDS

       The following operand shall be supported:

       file      A  pathname of an existing SCCS file or a directory. If file is a directory, the
                 sact 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 interrogated are files of an unspecified format.

ENVIRONMENT VARIABLES

       The following environment variables shall affect the execution of sact:

       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

       The output for each named file shall consist of a line in the following format:

           "%s %s %s %s %s\n", <SID>, <new SID>, <login>, <date>, <time>

       <SID>     Specifies  the  SID  of  a delta that currently exists in the SCCS file to which
                 changes are made to make the new delta.

       <new SID> Specifies the SID for the new delta to be created.

       <login>   Contains the login name of the user who makes the delta (that is, who executed a
                 get for editing).

       <date>    Contains  the  date  that get -e was executed, in the format used by the prs :D:
                 data keyword.

       <time>    Contains the time that get -e was executed, in the format used by  the  prs  :T:
                 data keyword.

       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 preceding lines:

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

STDERR

       The standard error shall be used only for optional informative  messages  concerning  SCCS
       files with no impending deltas, and for diagnostic messages.

OUTPUT FILES

       None.

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

       delta, get, sccs, unget

       The Base Definitions volume of POSIX.1‐2017, Chapter 8, Environment Variables

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 .