PROLOG | NAME | SYNOPSIS | DESCRIPTION | OPTIONS | OPERANDS | STDIN | INPUT FILES | ENVIRONMENT VARIABLES | ASYNCHRONOUS EVENTS | STDOUT | STDERR | OUTPUT FILES | EXTENDED DESCRIPTION | EXIT STATUS | CONSEQUENCES OF ERRORS | APPLICATION USAGE | EXAMPLES | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT

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

       prs — print an SCCS file (DEVELOPMENT)

SYNOPSIS         top

       prs [−a] [−d dataspec] [−r[SID]] file...

       prs [−e|−l] −c cutoff [−d dataspec] file...

       prs [−e|−l] −r[SID] [−d dataspec] file...

DESCRIPTION         top

       The prs utility shall write to standard output parts or all of an
       SCCS file in a user-supplied format.

OPTIONS         top

       The prs utility shall conform to the Base Definitions volume of
       POSIX.1‐2008, Section 12.2, Utility Syntax Guidelines, except that
       the −r option has an optional option-argument. This optional option-
       argument cannot be presented as a separate argument. The following
       options shall be supported:

       −d dataspec
                 Specify the output data specification. The dataspec shall
                 be a string consisting of SCCS file data keywords (see Data
                 Keywords) interspersed with optional user-supplied text.

       −r[SID]   Specify the SCCS identification string (SID) of a delta for
                 which information is desired. If no SID option-argument is
                 specified, the SID of the most recently created delta shall
                 be assumed.

       −e        Request information for all deltas created earlier than and
                 including the delta designated via the −r option or the
                 date-time given by the −c option.

       −l        Request information for all deltas created later than and
                 including the delta designated via the −r option or the
                 date-time given by the −c option.

       −c cutoff Indicate the cutoff date-time, in the form:

                     YY[MM[DD[HH[MM[SS]]]]]

                 For the YY component, values in the range [69,99] shall
                 refer to years 1969 to 1999 inclusive, and values in the
                 range [00,68] shall refer to years 2000 to 2068 inclusive.

                 Note:     It is expected that in a future version of this
                           standard the default century inferred from a
                           2-digit year will change. (This would apply to
                           all commands accepting a 2-digit year as input.)

                 No changes (deltas) to the SCCS file that were created
                 after the specified cutoff date-time shall be included in
                 the output. Units omitted from the date-time default to
                 their maximum possible values; for example, −c 7502 is
                 equivalent to −c 750228235959.

       −a        Request writing of information for both removed—that is,
                 delta type=R (see rmdel(1p))—and existing—that is, delta
                 type=D,—deltas. If the −a option is not specified,
                 information for existing deltas only shall be provided.

OPERANDS         top

       The following operand shall be supported:

       file      A pathname of an existing SCCS file or a directory. If file
                 is a directory, the prs 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         top

       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         top

       Any SCCS files displayed are files of an unspecified format.

ENVIRONMENT VARIABLES         top

       The following environment variables shall affect the execution of
       prs:

       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 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         top

       Default.

STDOUT         top

       The standard output shall be a text file whose format is dependent on
       the data keywords specified with the −d option.

   Data Keywords
       Data keywords specify which parts of an SCCS file shall be retrieved
       and output. All parts of an SCCS file have an associated data
       keyword. A data keyword may appear in a dataspec multiple times.

       The information written by prs shall consist of:

        1. The user-supplied text

        2. Appropriate values (extracted from the SCCS file) substituted for
           the recognized data keywords in the order of appearance in the
           dataspec

       The format of a data keyword value shall either be simple ('S'), in
       which keyword substitution is direct, or multi-line ('M').

       User-supplied text shall be any text other than recognized data
       keywords. A <tab> shall be specified by '\t' and <newline> by '\n'.
       When the −r option is not specified, the default dataspec shall be:

           :PN::\n\n

       and the following dataspec shall be used for each selected delta:

           :Dt:\t:DL:\nMRs:\n:MR:COMMENTS:\n:C:

┌─────────────────────────────────────────────────────────────────────────────────────┐
│                              SCCS File Data Keywords                                │
├────────┬────────────────────────────────┬──────────────┬───────────────────┬────────┤
│Keyword Data Item            File Section Value       Format │
├────────┼────────────────────────────────┼──────────────┼───────────────────┼────────┤
│:Dt:    │ Delta information              │ Delta Table  │ See below*        │   S    │
│:DL:    │ Delta line statistics          │      "       │ :Li:/:Ld:/:Lu:    │   S    │
│:Li:    │ Lines inserted by Delta        │      "       │ nnnnn***          │   S    │
│:Ld:    │ Lines deleted by Delta         │      "       │ nnnnn***          │   S    │
│:Lu:    │ Lines unchanged by Delta       │      "       │ nnnnn***          │   S    │
│:DT:    │ Delta type                     │      "       │ D or R            │   S    │
│:I:     │ SCCS ID string (SID)           │      "       │ See below**       │   S    │
│:R:     │ Release number                 │      "       │ nnnn              │   S    │
│:L:     │ Level number                   │      "       │ nnnn              │   S    │
│:B:     │ Branch number                  │      "       │ nnnn              │   S    │
│:S:     │ Sequence number                │      "       │ nnnn              │   S    │
│:D:     │ Date delta created             │      "       │ :Dy:/:Dm:/:Dd:    │   S    │
│:Dy:    │ Year delta created             │      "       │ nn                │   S    │
│:Dm:    │ Month delta created            │      "       │ nn                │   S    │
│:Dd:    │ Day delta created              │      "       │ nn                │   S    │
│:T:     │ Time delta created             │      "       │ :Th:::Tm:::Ts:    │   S    │
│:Th:    │ Hour delta created             │      "       │ nn                │   S    │
│:Tm:    │ Minutes delta created          │      "       │ nn                │   S    │
│:Ts:    │ Seconds delta created          │      "       │ nn                │   S    │
│:P:     │ Programmer who created Delta   │      "       │ logname           │   S    │
│:DS:    │ Delta sequence number          │      "       │ nnnn              │   S    │
│:DP:    │ Predecessor Delta sequence     │      "       │ nnnn              │   S    │
│        │ number                         │              │                   │        │
│:DI:    │ Sequence number of deltas      │      "       │ :Dn:/:Dx:/:Dg:    │   S    │
│        │ included, excluded, or ignored │              │                   │        │
│:Dn:    │ Deltas included (sequence #)   │      "       │ :DS: :DS: ...     │   S    │
│:Dx:    │ Deltas excluded (sequence #)   │      "       │ :DS: :DS: ...     │   S    │
│:Dg:    │ Deltas ignored (sequence #)    │      "       │ :DS: :DS: ...     │   S    │
│:MR:    │ MR numbers for delta           │      "       │ text              │   M    │
│:C:     │ Comments for delta             │      "       │ text              │   M    │
│:UN:    │ User names                     │  User Names  │ text              │   M    │
│:FL:    │ Flag list                      │    Flags     │ text              │   M    │
│:Y:     │ Module type flag               │      "       │ text              │   S    │
│:MF:    │ MR validation flag             │      "       │ yes or no         │   S    │
│:MP:    │ MR validation program name     │      "       │ text              │   S    │
│:KF:    │ Keyword error, warning flag    │      "       │ yes or no         │   S    │
│:KV:    │ Keyword validation string      │      "       │ text              │   S    │
│:BF:    │ Branch flag                    │      "       │ yes or no         │   S    │
│:J:     │ Joint edit flag                │      "       │ yes or no         │   S    │
│:LK:    │ Locked releases                │      "       │ :R: ...           │   S    │
│:Q:     │ User-defined keyword           │      "       │ text              │   S    │
│:M:     │ Module name                    │      "       │ text              │   S    │
│:FB:    │ Floor boundary                 │      "       │ :R:               │   S    │
│:CB:    │ Ceiling boundary               │      "       │ :R:               │   S    │
│:Ds:    │ Default SID                    │      "       │ :I:               │   S    │
│:ND:    │ Null delta flag                │      "       │ yes or no         │   S    │
│:FD:    │ File descriptive text          │   Comments   │ text              │   M    │
│:BD:    │ Body                           │     Body     │ text              │   M    │
│:GB:    │ Gotten body                    │      "       │ text              │   M    │
│:W:     │ A form of what string          │     N/A      │ :Z::M:\t:I:       │   S    │
│:A:     │ A form of what string          │     N/A      │ :Z::Y: :M: :I::Z: │   S    │
│:Z:     what string delimiter          │     N/A      │ @(#)              │   S    │
│:F:     │ SCCS filename                  │     N/A      │ text              │   S    │
│:PN:    │ SCCS file pathname             │     N/A      │ text              │   S    │
└────────┴────────────────────────────────┴──────────────┴───────────────────┴────────┘
       *     :Dt:=:DT: :I: :D: :T: :P: :DS: :DP:

       **    :R:.:L:.:B:.:S: if the delta is a branch delta (:BF:==yes)
             :R:.:L: if the delta is not a branch delta (:BF:==no)

       ***   The line statistics are capped at 99999. For example, if 100000
             lines were unchanged in a certain revision, :Lu: shall produce
             the value 99999.

STDERR         top

       The standard error shall be used only for diagnostic messages.

OUTPUT FILES         top

       None.

EXTENDED DESCRIPTION         top

       None.

EXIT STATUS         top

       The following exit values shall be returned:

        0    Successful completion.

       >0    An error occurred.

CONSEQUENCES OF ERRORS         top

       Default.

       The following sections are informative.

APPLICATION USAGE         top

       None.

EXAMPLES         top

        1. The following example:

               prs −d "User Names for :F: are:\n:UN:" s.file

           might write to standard output:

               User Names for s.file are:
               xyz
               131
               abc

        2. The following example:

               prs −d "Delta for pgm :M:: :I: − :D: By :P:" −r s.file

           might write to standard output:

               Delta for pgm main.c: 3.7 − 77/12/01 By cas

        3. As a special case:

               prs s.file

           might write to standard output:

               s.file:
               <blank line>
               D 1.1 77/12/01 00:00:00 cas 1 000000/00000/00000
               MRs:
               bl78−12345
               bl79−54321
               COMMENTS:
               this is the comment line for s.file initial delta
               <blank line>

           for each delta table entry of the D type. The only option allowed
           to be used with this special case is the −a option.

RATIONALE         top

       None.

FUTURE DIRECTIONS         top

       None.

SEE ALSO         top

       admin(1p), delta(1p), get(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 http://www.unix.org/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                 2013                             PRS(1P)

Pages that refer to this page: admin(1p)delta(1p)get(1p)rmdel(1p)sccs(1p)val(1p)