I sometimes wish that there was a grep command in windows, well, it turns out that there is, sort of, it's called find.
You can just pipe the output of a command to find and it will do pretty much the same as grep, e.g.
netstat -anp TCP | find "5555"
TCP 0.0.0.0:5555 0.0.0.0:0 LISTENING
TCP 10.168.2.115:5555 10.168.2.115:39898 ESTABLISHED
TCP 10.168.2.115:39898 10.168.2.115:5555 ESTABLISHED
You can use the switch /v to get all lines that don't contain the string:
dir | find /V ".cer"
Volume in drive C has no label.
Volume Serial Number is B8E9-71D1
Directory of C:\Dev\CACerts
05/09/2011 18:26 <DIR> .
05/09/2011 18:26 <DIR> ..
12/08/2011 18:52 3,298 tony.pfx
12/08/2011 19:19 3,274 tonytest.pfx
2 File(s) 6,572 bytes
2 Dir(s) 4,861,059,072 bytes free
It's possible to pipe the output multiple times. In the example below you'll see only established connections on port 5555, which may or may not be of any use but it's neat.
netstat -anp TCP | find "ESTABLISHED" | find "5555"I guess you can use it as a sort of logical and capability, similarly using /V switch , you can use it as not and, e.g. for established and not in port 5555
TCP 10.168.20.115:5555 10.168.20.115:41184 ESTABLISHED
TCP 10.168.20.115:41184 10.168.20.115:5555 ESTABLISHED
netstat -anp TCP | find "ESTABLISHED" | find /V "5555"
TCP 10.168.20.115:445 10.168.20.101:1974 ESTABLISHED
TCP 10.168.20.115:3389 10.168.20.203:60815 ESTABLISHED
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