One line is all it takes. Here I suppress the lines that match foo by only printing the line if it does not. Redirect the output from STDOUT to a file out.txt and you are done. Use ' instead of " on *nix 

C:\>type data.txt
foo
bar
foo
bar
foo
foo

C:\>perl -n -e "m/foo/ or print" data.txt > out.txt

C:\>type out.txt
bar
bar

C:\>

[download]

To match lots of differect stuff you would just match m/this|that|other/ If you wantit long hand it might look like: 

#!/usr/bin/perl -w
use strict;

$ARGV[0] or die "Useage ./$0 file_to_process > output.file\n";

my @finds = qw( this that other );
my $finds_re = join '|', map { quotemeta }@finds;
$finds_re = qr/$finds_re/;

open F, $ARGV[0] or die $!;
while(<F>) {
    next if m/$finds_re/;
    print;
}
close F;

[download]

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: Finding a string within a string by tachyon
in thread Finding a string within a string by skyler

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