I am guessing you meant 
@lines = grep { $_ !~ /^\s*\n?\r?$/ } @lines

[download]
instead of 
@lines = grep { $_ != /^\s*\n?\r?$/ } @lines

[download]
(i.e., s/!=/!~/).

Also as a nitpick, \s is an abbreviation to the character class [\ \t\r\n\f] (reference: perlreftut)so the \n and the \r are never matched as the * is greedy (i.e. they are unnecessary).

-enlil

In reply to Re: Re: strip out lines until match by Enlil
in thread strip out lines until match by alienhuman

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