Hello,
im trying write a little code that checks if a open is open but it do not seem to work for me, i hope you can help 
#!/usr/contrib/bin/perl -w

$portnum=$ARGV[0];

@netstat=`netstat -an`;

@foundlines = grep /^\d+.\d+.\d+.\d+.$portnum/, @netstat;
foreach $port(@foundlines){
   if ( $port =~ /(\d+.\d+.\d+.\d+.$portnum) (\d+.\d+.\d+.\d+.\d+)\s+\
+d+\s+\d\s+\d+\s+\d\s+(\w+)$/){
      if ($3 ne "LISTEN" or $port ne "ESTABLISHED" ){
         print "$1 $3\n";
      }else{
         print "ok";
      }
   }
}

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The problem is if i pick a number like "94" it get also "9494" BUT cuts off the first part of the ip-addr, so : 228.132.245.9494 So how i can define make sure it: 1) only picks the ones that matches precisely the port nummer? 2) and why do it cut of the first part of the ip-addr ?

the std output from a "netstat -an|grep 949" 

131.228.132.245.9494 131.228.132.159.41713 24820      0  8760      0 T
+IME_WAIT
131.228.132.245.94 131.228.132.159.41703 24820      0  8760      0 TIM
+E_WAIT

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The funny part ??? 

root@toybox: perl portstat.pl 94
228.132.245.9494 TIME_WAIT

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this looks right tho 

root@toybox: perl portstat.pl 9494
131.228.132.245.9494 TIME_WAIT

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Here is what i want: 

root@toybox: perl portstat.pl 9494 
131.228.132.245.94 TIME_WAIT

[download]

EDIT::: Pasted the complete code and added some more stuff... This is really giving me a headache. EDIT:::

Thanks alot for the help.
,Miller

janitored by ybiC: Retitle from "Checking status of ports" for better searching, minor format cleanup for legibility

In reply to Regex to parse netstat output by miller

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