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hashbangbinbash

03-14-2008 01:10 PM

Please help me script

I want to make a script that lifts a PIDs for rtorrent processes, so far I got this:

netstat -tanpu | grep "rtorrent"

gives me a nice list of 7 columns, the PIDs are buried at the end of the 4th column,

tcp 0 0 213.321.40.162:6942 85.235.218.114:62649 ESTABLISHED 28387/rtorrent

I want to lift off the PID 6942 for instance, and then tell system to kill that process, but sed makes my head hurt.:( How might you do it?

custangro

03-14-2008 01:16 PM

Quote:

Originally Posted by hashbangbinbash (Post 3088753)

Try to "pgrep" for it instead

Code:

pgrep rtorrent

It will return a PID (or a group of pids). Then you can kill it with your basic kill command

Code:

kill -INT $(pgrep rtorrent)

Or if you had a group of pids...

Code:

for pids in $(pgrep rtorrent)

do

kill -INT ${pids}

done

osor	03-14-2008 01:44 PM

Some systems also have the utilites pkill and killall.

konsolebox

03-15-2008 12:31 AM

Quote:

Originally Posted by hashbangbinbash (Post 3088753)

tcp 0 0 213.321.40.162:6942 85.235.218.114:62649 ESTABLISHED 28387/rtorrent

I want to lift off the PID 6942 for instance, and then tell system to kill that process, but sed makes my head hurt.:( How might you do it?

isn't 6942 a port and not a PID? just in case 28387 is the pid, using your netstat command, you can have:

Code:

PID=$(netstat -tanpu | sed -n -e '/rtorrent/s@.*\([0-9]\+\)/rtorrent.*@\1@p')

[ -n "$PID" ] && kill -s SIGKILL $PID

hashbangbinbash

03-15-2008 06:52 AM

Thanks for this, nice solutions and correction there, very helpful indeed.

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