Regular expressions confuse me. Deeply.

I am grabbing a process name with Proc::ProcessTable, but I also need to grab out certain fields to display. I know that my current regular expression is horribly flawed, but I will provide what I am working with.

I am eventually going to use this code with SOAP so that I do not need to be on the UNIX box to view running processes. However, the process information often looks like this:

OPSms -N op01Sms1 -t SMS -T 0x70000000 -U op01/op011 -I sms1

I need to grab the OPSms, op01Sms1, and 0x70000000 fields.

My "code":

#!/usr/bin/perl -w

use strict;
use Proc::ProcessTable;

my $t = new Proc::ProcessTable;

print "PID    PPID   UP      START                    CMD TYPE      CM
+D NAME   TRACE\n";

foreach my $p (@{$t->table}) {
  if ($p->{cmd} =~ /(op01)/) {
    my $seconds = $p->{time} % 60;
    my $diff = ($p->{time} - $seconds) / 60;
    my $minutes = $diff % 60;
    $seconds = "0$seconds" if $seconds =~ /^\d$/;
    my $bigTime = "$minutes:$seconds";

    ### Grab process name, type, and trace from cmd
   
    $p->{cmd} =~ /(\w+)\b\w+\b(\w+?)\b/;
    my $procType = $1;    
    my $procName = $2;
    #not checking for trace yet, since I can't get the procname

    my $FORMAT = "%-6s %-6s %-7s %-24s %-15s\n";
    printf($FORMAT,
       $p->{pid},
       $p->{ppid},
       $bigTime,
       scalar(localtime($p->{start})),
       $procType,
       $procName);
  }
}

[download]

I'm getting a "Use of unitialized value in printf at ./procs2.pl line 29" which is the printf.



If you make something idiot-proof, eventually someone will make a better idiot.
I am that better idiot.

In reply to Regex confusion by peschkaj

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