awk regex with variable

bertl1982 · 03-17-2010, 08:14 AM

Hy!

I've a problem with bash scripting and can't solve it. I was searching for a solution but can't find anything which answers my question. ... maybe I'm to stupid to understand it at the moment ... so I hope there is anybody who can help me.

I will check the state of an port (in this case 125) with the followig line:

>PORT_STATE=`netstat -nat | awk '/0.0.0.0:125/{print $6}'`
>echo $PORT_STATE
LISTEN

Now I'm trying to set the port as an variable like this:

>PORT=125
>PORT_STATE=`netstat -nat | awk '/0.0.0.0:$PORT/{print $6}'`
>echo $PORT_STATE

But this dosn't work and I don't know how to do it correctly.

Please help!

Thanks!

bertl1982

troop · 03-17-2010, 08:26 AM

Code:

PORT=125
PORT_STATE=`netstat -nat | awk '/0.0.0.0:'$PORT'/{print $6}'`
echo $PORT_STATE

bertl1982 · 03-17-2010, 08:38 AM

@troop:

Vielen Dank!

LG, bertl1982