Probably you want to combine Regexp::Assemble with inplace edit and do something like:

use Regexp::Assemble;
  
my $ra = Regexp::Assemble->new;
$ra->add ($_) for @matchArray;

my $re = $ra->re;

@ARGV = ('filename');
$^I = '.bak';

while (<>) {
  print if m/$re/;
}

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DWIM is Perl's answer to Gödel

In reply to Re: Usage of grep on a file by GrandFather
in thread Usage of grep on a file by tsk1979

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