thanks, but in the loop of read input file, "if ($pins1 =~ /^$key$/) ", the dollar sign, $ will have to be removed too.

This applys only if you want a partial match of the keys. A key like c4a would then match c4a_123[3] also.

You could escape the brackets: 

    $pins2 =~ s/\*/.*/; # make key into regex string if containing *
    $pins2 =~ s/([\[\]])/\\$1/g; # escape brackets c4a_123[3] -> c4a_1
+23\[3\]

[download]

That way the brackets aren't treated as a character class whilst matching the keys.

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

In reply to Re^5: Wildcard in a hash by shmem
in thread Grep asterisk sign in input file by DespacitoPerl

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