untested:

without grep: 
foreach my $line (@lines) {
 next if $line =~ /^QKC_/;
 #do something with $line
}

[download]
with grep: 
@subset = grep(/^QKC_/, @lines);

[download]

In reply to Re: how to find all lines which do not start with something by Anonymous Monk
in thread how to find all lines which do not start with something by rabbit55

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