Okay, that's definitely an improvement.

Now you're assigning to $file (which doesn't need quotes around it): 

    my $file = "$ARGV[0]";

    # Better:  (my $file = $ARGV[0]) or die "Syntax error ...\n";

[download]

Why not use the same variable thereafter?: 

    open(INFILE,"$ARGV[0]") or die "Can't open $ARGV[0]: $!";

    # Better:  open(INFILE, $file) or die "Can't open '$file': $!\n";

[download]

But I still think you should specify the exact output you're looking for.  I suspect that the solution to get you from input data to output data may be easier than you think, and knowing what output you require will help us to modify your program to generate that output correctly.

s''(q.S:$/9=(T1';s;(..)(..);$..=substr+crypt($1,$2),2,3;eg;print$..$/

In reply to Re^3: gathering of some elements of a list by liverpole
in thread gathering of some elements of a list by steph_bow

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