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read/write delete duplicates/sort PROBLEM! - Use of uninitialized value in sprintf

by VladP (Novice)
on Oct 18, 2021 at 14:56 UTC ( [id://11137683]=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    $tags{sprintf("%04d%6s",$1 || 999,$2)} = $tag;
  2. or download this
    >perl test.pl input.txt output.txt
  3. or download this
    require 5.000;

...

close NEWFILE;
close FILE;

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