User Commands                                         sccs-val(1)


     sccs-val, val - validate an SCCS file


     /usr/ccs/bin/val -

     /usr/ccs/bin/val [-T] [-s] [-m name] [-rsid] [-y type] s.filename...


     The val utility determines if the specified s.files meet the
     characteristics specified by the indicated arguments.

     val has a special argument, `-', which  reads  the  standard
     input  until  the  end-of-file  condition is detected.  Each
     line read is independently processed as if it were a command
     line argument list.

     If a directory name is used in place of the s.filename  com-
     mand  line  argument, the val command applies to all s.files
     in that directory. Unreadable s.files produce an error; pro-
     cessing continues with the next file (if any).

     val generates diagnostic messages on the standard output for
     each command line and file processed and also returns a sin-
     gle 8-bit code upon exit as described below.

     The 8-bit code returned by val is a disjunction of the  pos-
     sible errors, that is, it can be interpreted as a bit string
     where (moving from left to right) the bits  set  are  inter-
     preted as follows:

       bit 0 (value 128) = missing file argument
       bit 1 (value  64) = unknown or duplicate option
       bit 2 (value  32) = corrupted s.file
       bit 3 (value  16) = can not open file or file not in s.file format
       bit 4 (value   8) = the SCCS delta ID (SID) is invalid or ambiguous
       bit 5 (value   4) = the SID does not exist
       bit 6 (value   2) = mismatch between %Y% and -y argument
       bit 7 (value   1) = mismatch between %M% and -m argument

     val can process two or more files on a given  command  line,
     and in turn can process multiple command lines (when reading
     the standard input).  In these cases, an aggregate  code  is
     returned  which is the logical OR of the codes generated for
     each command line and file processed.


     The following options are supported:

     -h   Check SID specific checksums that  are  available  with

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User Commands                                         sccs-val(1)

          SCCS  v6 history files.  This may slow down the process
          significantly in case that there are many deltas  in  a
          SCCS history file.

     -m name
          Compares name with the %M% ID keyword in the s.file.

          Checks to  see  if  the  indicated  SID  is  ambiguous,
          invalid, or absent from the s.file.

     -s       Silent.  Suppresses the  normal  error  or  warning

     -y type  Compares type with the %Y% ID keyword.

     -T       Trace. Print extra debug messages.   This  disables
              the  silent  mode.  When in debug mode, extra tests
              are enabled for:

              statistics  The statistics line in the SCCS history
                          file  is written but not used.  This is
                          why this test is only enabled in  debug
                          mode  and  why  a  defective statistics
                          line does not  affect  the  exit  code.
                          The test still only checks for semanti-
                          cal correctness  but  not  for  correct
                          values  (e.g.  whether  the  number  of
                          inserted lines is correct).

              time stamps The time stamps  in  the  SCCS  history
                          file  are only used when a cut-off time
                          was specified.  This  test  checks  for
                          monotonic  growing time stamps. A warn-
                          ing is issued if time stamps  go  back-
                          wards,  but  this  does  not affect the
                          exit code.

              For a complete consistency check, it is recommended
              to run val in debug mode to check for all problems.

     -V       Prints the val version number string and exists.


     See environ(5) for descriptions of the following environment
     variables  that  affect  the  execution  of  val(1):   LANG,

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User Commands                                         sccs-val(1)

          If set, val(1) will not automatically call help(1) with
          the  SCCS  error  code in order to print a more helpful
          error message. Scripts that depend on the  exact  error
          messages  of  SCCS  commands should set the environment
          variable SCCS_NO_HELP and set LC_ALL=C.


     The following exit values are returned:

     0    Successful completion.

     1    An error occurred.


     s.file      SCCS history file, see sccsfile(4).


     See attributes(5) for descriptions of the  following  attri-

    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    | Availability                | SUNWsprot                   |
    | Interface Stability         | Standard                    |


     sccs(1),    sccs-admin(1),    sccs-cdc(1),     sccs-comb(1),
     sccs-cvt(1),   sccs-delta(1),   sccs-get(1),   sccs-help(1),
     sccs-log(1),   sccs-prs(1),   sccs-prt(1),    sccs-rmdel(1),
     sccs-sact(1),   sccs-sccsdiff(1),  sccs-unget(1),  bdiff(1),
     diff(1),     what(1),     sccschangeset(4),     sccsfile(4),
     attributes(5), environ(5), standards(5).


     Use the  SCCS  help  command  for  explanations  (see  sccs-


     The SCCS suite was origininally written by Marc J.  Rochkind
     at  Bell Labs in 1972.  Release 4.0 of SCCS, introducing new

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User Commands                                         sccs-val(1)

     versions of  the  programs  admin(1),  get(1),  prt(1),  and
     delta(1)  was  published on February 18, 1977; it introduced
     the new text based SCCS v4  history  file  format  (previous
     SCCS  releases used a binary history file format).  The SCCS
     suite was later maintained by various people at AT&T and Sun
     Microsystems.   Since  2006, the SCCS suite is maintained by
     Joerg Schilling.

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