If you're going to use grep that way, you're doing unnecessary work. Either rewrite that grep as a for loop or use List::Util::first.

my $index;
for ( 0 .. $#csvlist ) {
    if ( $csvlist[$_] =~ /$x/ ) {
        $index = $_;
        last;
    }
}

use List::Util 'first';
my $index = first { $csvlist[$_] =~ /$x/ } 0 .. $#csvlist

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In reply to Re^2: Array searching, grep, first by diotalevi
in thread Array searching, grep, first by jimbus

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