I'm trying to compare 2 array and print the difference at a 3rd file. However how am i going to compare this 2 arrays by ignoring certain patterns: For example: 1st array contains: 
ctahci
cptcsa0
ctsata:25:seed
cptcsa1:50:seed
ctsata_1:25:seed

[download]
2nd array contains: 
cptcsa0
ctsata
cptcsa1

[download]
I wanna ignore the ":25:seed" and ":50:seed" in the @removelist during comparison. So that the output file will be: 
ctahci
ctsata_1:25:seed

[download]
This is the code for me to find the difference but i got no idea on how to ignore the 2 patterns. 
 #!/usr/intel/bin/perl

@testlist = qw(ctahci,cptcsa0,ctsata:25:seed,cptcsa1:50:seed,ctsata_1:
+25:seed)
@removelist =qw(cptcsa0,ctsata,cptcsa1)
my $outfile = "./new.list";

%removelist=map{$_=>1} @removelist;

@newlist=grep(!defined $removelist{$_}, @testlist);

# creating new list
open (OUTFILE, ">$outfile") or die "Cannot open $outfile for writing \
+n";
);
print OUTFILE "$_\n" foreach (@newlist);;

[download]
Any ideas pls help. Thx

In reply to Comparing 2 arrays but ignoring certain patterns by hongping

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.