Hello and thanks for taking the time to look at my issue.

I have a script that I'm working on that handles setup of new servers, via user input. The user enters server information which is then stored in a hash. The hash keys all start with 'node'.

The issue is that the hash entries are stored as node0-9wwn0, etc.

Sample: 

Key: node0  Value: servername0
Key: node0wwn0 Value: servername0wwn0
...

[download]
What I need is to pull JUST the node key (which is variable based on how many servers are entered...could be node0-node199).

If I regex match on node0-9 inside the loop it pulls the last hash entry (node0wwn0 in this case), and all I need is 'node0' and it's corresponding key. After several days of searching and getting nowhere with substr and regexes I decided to throw myself on the mercy of the Monks. 

foreach my $key (sort keys %$ref) {
 if ($key ne "Server") {
 print $key .":" . " " . $ref->{$key} . "\n";
 } 
 

### Search the hash for cluster nodes.  
### If they exist, perform operations
### Regex looks for the node.* keys, which indicates a cluster node.
### If there's no cluster, there won't be any node.* keys.

 
if ($key =~ m/node.*$/) {
print "We have a cluster!  Here are the entries: " .$key. ":" . $ref->
+{$key}. "\n";
 } 
if ($key =~ m/node[0-9]/) {
 print $key . ":" . $ref->{$key}. "\n";
  }
 }

[download]
As you can see from above regex, that matches anything on that line with node0-9, when all I want to pull out of the hash is node0-9...my problem is that the key is variable, as I said, so I can't hard code it. Can someone point me in the right direction? Thank you much!

In reply to Partial string match -- with a twist. by smw6181

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