The easiest way is to use a regular expression.

my $dn = 'corpid=xxxxxx,ou=people,o=corp';
my ($ou) = $dn =~ /ou=([^,]*)/;
print "ou = $ou\n";
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You could also create a hash of the tokens like this if you need to test other values:

my $dn = 'corpid=xxxxxx,ou=people,o=corp';
my %tokens = map {split /=/} split /,/, $dn;
print "ou = $tokens{ou}\n";
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This approach first splits the $dn variable into pairs of this form:

  corpid=xxxxxx
  ou=people
  o=corp

It then splits each of those pairs by the '=', which results in this list:

  corpid,
  xxxxxx,
  ou,
  people,
  o,
  corp

Which is equivalent to defining a hash like this:

my %tokens = (
  corpid => 'xxxxxx',
  ou => 'people',
  o => 'corp',
);
[download]

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