## Define ENV

$ENV{"PATH"} = qq(/usr/epoch/bin:/usr/epoch/EB/bin:/usr/bin:/usr/sbin:
+/bin:/sbin);
delete $ENV{"IFS"};
        
## Declare scalers for client templates and client tape logs

        my $scratches="/usr/local/log/scratch_tapes.log";
        my $logf="/usr/epoch/EB/log/ebcat.log";

## Gather data for scratch tapes; open file, create array list, then p
+rint it.

        open (FOO, ">$scratches") || die "could not open file:$!";
        my $scratch_list = `grep 9840S $logf |grep "ebexpire, ebexpire
+"`;
        print FOO "$scratch_list";
                while (<FOO>) {
                        local $, = "\t";
                        print +(split)[0,1,5], $/;
                }
        close (FOO);
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## Define ENV

 $ENV{"PATH"} = qq(/usr/epoch/bin:/usr/epoch/EB/bin:/usr/bin:/usr/sbin
+:/bin:/sbin);
 delete $ENV{"IFS"};
        
## Declare scalers for client templates and client tape logs

        my $scratches="/usr/local/log/scratch_tapes.log2";
        my $logf="/usr/epoch/EB/log/ebcat.log";

        open (FOO, ">$scratches") || die "could not open file:$!";
        open (D, "$logf") || die "could not open file:$!";
        while ( <D> ) {
                if (( /9840S/ ) && ( /"ebexpire, ebexpire"/ )) {
                        print $_ $scratches
                }
        }
        close (FOO);
        close (D);
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The problem is that you've opened the filehandle FOO for output, but then you try to read from it with the <FOO> operator. You can't do that. Opening the file for output is going to clobber whatever its contents were, and you can't read from a file opened with ">".

See perlopentut and perlopen for details.




Dave

print +(split)[1,5], $/ while <DATA>;
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print +(split)[1,5], $/ while <DATA>;

Could also be written like this:

while ( my $line = <DATA> ) {
    my ( $second, $sixth ) = ( split //, $line )[1,5];
    print $second, $sixth, "\n";
}
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The unary + sign is used to signal to Perl that you mean print( (split)[1,5], "\n" ); and not print(split[1,5]),"\n"; (which doesn't make sense, but is confusing to Perl nevertheless.

For a description of split, see split. For a description of using slices, see perldata. For a description of what $/ is, see perlvar. And for an explanation of the "do something while condition" syntax, see perlsyn.




Dave

ok so is the +(split)1,5 referencing the regexp meaning match 1 or more times? or meaning "open for reading and writing?" I a still not understanding what +(split) really means.