Why are you using sed when you can use Perl directly?

open my $fh1, '<', "file1"
    or die "Couldn't read 'file1': $!";
my %delete = map { s/\s*$//; $_ => 1 } <$fh1>;

open my $fh2, '<', "file2"
    or die "Couldn't read 'file2': $!";
while( <$fh2>) {
    my( $key, $value ) = split /\s*=/;
    if( ! $delete{ $key }) {
        print $_;
    } else {
        # skip this key
    };
};

[download]

If you want to keep on using sed, my advice is to print all the commands you're launching and then inspecting them or running them from the command line separately.

In reply to Re: sed in perl by Corion
in thread sed in perl by GauCho

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