val(1) DG/UX 5.4.2 val(1)
NAME
val - validate SCCS file
SYNOPSIS
val -
val [-s] [-rSID] [-mname] [-ytype] files
DESCRIPTION
val determines if the specified file is an SCCS file meeting the
characteristics specified by the optional argument list. Arguments
to val may appear in any order. The arguments consist of options and
named files.
val has a special argument, -, that reads the standard input until an
end-of-file condition is detected. Each line read is independently
processed as if it were a command line argument list.
val generates diagnostic messages on the standard output for each
command line and file processed, and also returns a single 8-bit code
upon exit as described below.
The options are listed below. The effects of any option apply
independently to each named file on the command line.
-s Silences the diagnostic message normally
generated on the standard output for any error
that is detected while processing each named file
on a given command line.
-rSID The argument value SID (SCCS IDentification
String) is an SCCS delta number. A check is made
to determine if the SID is ambiguous (e. g., -r1
is ambiguous because it physically does not exist
but implies 1.1, 1.2, etc., which may exist) or
invalid (e. g., -r1.0 or -r1.1.0 are invalid
because neither case can exist as a valid delta
number). If the SID is valid and not ambiguous,
a check is made to determine if it actually
exists.
-mname The argument value name is compared with the SCCS
%M% keyword in file.
-ytype The argument value type is compared with the SCCS
%Y% keyword in file.
The 8-bit code returned by val is a disjunction of the possible
errors, i. e., can be interpreted as a bit string where (moving from
left to right) set bits are interpreted as follows:
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val(1) DG/UX 5.4.2 val(1)
bit 0 = missing file argument
bit 1 = unknown or duplicate option
bit 2 = corrupted SCCS file
bit 3 = cannot open file or file not SCCS
bit 4 = SID is invalid or ambiguous
bit 5 = SID does not exist
bit 6 = %Y%, -y mismatch
bit 7 = %M%, -m mismatch
Note that 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 - a logical OR of
the codes generated for each command line and file processed - is
returned.
DIAGNOSTICS
Use help(1) for explanations.
SEE ALSO
admin(1), delta(1), get(1), help(1), prs(1).
BUGS
val can process up to 50 files on a single command line. Any number
above 50 will trigger an error.
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