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Re: =~ matches non-existent symbols

by Athanasius (Archbishop)
on Nov 16, 2014 at 07:46 UTC ( [id://1107335]=note: print w/replies, xml ) Need Help??

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  1. or download this
    if ( <INPUT_FILE> =~ m/[^actgACTG]/ ) {
  2. or download this
    my $ok = 1;

...
}

print "good!\n" if $ok;

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