Below is a simple script where I am trying to find the locations for a given series within my DNA strand.
When I attempt to run it I get:

Global symbol "$dna1" requires explicit package name at restrictionSites.pl line 21.
syntax error at restrictionSites.pl line 21, near "){"
Global symbol "$dna1" requires explicit package name at restrictionSites.pl line 22.
I'm not entirely sure what/how to change. Any suggestions would be appreciate and it's probably very simple and am over thinking it. Thanks in advance.

#!/usr/bin/perl
use strict;
use warnings;
my $dna1 = "AACAGCACGGCAACGCTGTGCCTTGGGCACCATGCAGTACCAAACGGAACGATAGTGAAAACAATCAC AATCGCGGGTTTCATAGAAAATGGTTGGGAAGGAATGGTGGATGGTTGGTACGGTTT"
#deleted most so it's easier to read

while ($dna1 =~ s/\s/GA{ACT}TC/g){
print "Found GA{ACT}TC at", pos($dna1)-4, "\n";
}

In reply to RegEx and Packaging Name Problem by blarsen

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