topic Re: netstat -a | grep in Operating System - HP-UX

netstat -a | grep

SM_3 — Tue, 12 Sep 2006 14:45:19 GMT

Hello

I want to netstat -a | grep '23' (or any port number).

I dont want output to contain
6523 or
6723

I want output to contain
23 or
25 etc

Thanks.

Re: netstat -a | grep

Steven E. Protter — Tue, 12 Sep 2006 14:48:38 GMT

Shalom,

try:

netstat -a | grep " 23"

or

netstat -a | grep ":23"

putting a space in the quotes gets rid of 6523

SEP

Re: netstat -a | grep

Arunvijai_4 — Tue, 12 Sep 2006 14:49:38 GMT

Hi,

You can restrict by

# netstat -a |grep "23"

-Arun

Re: netstat -a | grep

Kofi ARTHIABAH — Tue, 12 Sep 2006 14:51:30 GMT

How about:

netstat -an | grep '.23 '

note the -an says do not perform a name lookup (otherwise, 23 will be translated to telnet and will never show up) and note that there is a period before the 23 and a space after the 23.

you might also want to consider using lsof (download it if you dont already have it)

lsof -i :23

Hope this helps.

Kofi

Re: netstat -a | grep

Jonathan Fife — Tue, 12 Sep 2006 14:52:19 GMT

Hi,

If you do a grep -w 23 it will search for 23 as a word by itself.

netstat -a | grep -w 23

HTH

Re: netstat -a | grep

Marcel Boogert_1 — Tue, 12 Sep 2006 14:52:22 GMT

Hi,

Use: netstat -a | grep ".23"

Regards,
MB.

Re: netstat -a | grep

James R. Ferguson — Tue, 12 Sep 2006 14:54:01 GMT

Hi:

# netstat -a|perl -nae 'print if $F[3]=~/\.23/'

Regards!

...JRF...

Re: netstat -a | grep

A. Clay Stephenson — Tue, 12 Sep 2006 14:54:26 GMT

You probably really want netstat -an so that all ports are listed numerically rather than symbolically and because the output is IP_address.portnumber we can take advantage of that "." and use grep -E (enhanced grep).

netstat -an | grep -E -e '\.23 '

Note the '\.' rather than '.'. In Regular Expressions, '.' represents any character so we need to explicitly look for the '.' and thus we need to escape the '.' with a backslash.

Re: netstat -a | grep

spex — Tue, 12 Sep 2006 14:56:15 GMT

Hi,

# netstat -an | grep -E '.+\..+\..+\..+\.23 |\*.23 '

PCS

Re: netstat -a | grep

Jonathan Fife — Tue, 12 Sep 2006 14:56:49 GMT

Just a note -- grep ".23" won't work since grep will interepret . as "any char" per regexp syntax.

If you escape the . (ie. grep "\.23" that will make grep search for a period, but will still include ports that start with 23 (ie. 2301, 239, etc.)

Re: netstat -a | grep

SM_3 — Tue, 12 Sep 2006 14:56:55 GMT

Blimey, that was quick.

Thanks.

Re: netstat -a | grep

SM_3 — Thu, 12 Oct 2006 06:07:25 GMT

apologies for the delayed points.