[WBEL-users] Another Shell Scripting Question

[Purcocks, Graham]

The answer is 'yes'. It will kill all processes which match your grep.
 
ie kill n1 n2 n3 n4
 
will kill all 4 processes

________________________________

From: Andrew Vong [mailto:andrewvong at finpress.com] 
Sent: 15 June 2005 19:18
To: Will McDonald; Purcocks, Graham; whitebox-users at beau.org; John
Haxby; Vincent Raffensberger
Subject: RE: [WBEL-users] Another Shell Scripting Question



Dear Gurus,

A BIG thank you to all for your contributions. I have learnt from ALL
your examples. 

Here is what I have ended up with:- 

ps x | grep "[s]sh -f -N" | awk '{ print $1 }' | xargs kill -p

I suppose this would work great if there were only 1 process as a result
of the cmd above. 

What would happen if there were more than 1 PID from std output? 

Will it kill ALL PIDs that were produced from std output?

Thanks again. :)

Best Regards,
Andrew


At 11:28 PM 15/06/2005, Purcocks, Graham wrote:


	I use
	 
	ps -ef | awk '{print $2}' to get the pid
	 
	kill -9 `ps -efw | awk '{print $2}'`
	 
	would do it.
	 
	or ps aux | awk '{print $2}' if you want to use aux.
	 
	Graham
	
________________________________

	From: whitebox-users-bounces at beau.org
[mailto:whitebox-users-bounces at beau.org] On Behalf Of Andrew Vong
	Sent: 15 June 2005 15:56
	To: whitebox-users at beau.org
	Subject: [WBEL-users] Another Shell Scripting Question
	
	
	Dear Gurus,
	
	Thanks for all who responded to my previous question. It worked
great! 
	
	I am now trying to perform a "ps aux | grep "some regular
expression" | cut -f 2 -d ......"
	
	I seem to be having 2 problems. 
	
	1) What delimiter should I define for cut? I've tried " "
(space) but that does not work.
	2) I usually get 2 processes listed. The actualy one I'm looking
for and the line I just executed. How can I exclude the 2nd process
which also contains the same "grep regular expression" ?
	
	The above is part of a longer one-liner command I'm trying to
construct. I basically want to kill a specific process and I just want
to obtain the PID for it. So, it may end up looking like this??
	
	$ ps aux | grep "some regular expression" | cut -f 2 -d ...... |
xargs kill -9
	
	Or something along those lines... 
	
	Hope someone out there can help me. 
	
	Thanks again. :)
	
	Best Regards,
	Andrew
	


At 11:45 PM 15/06/2005, John Haxby wrote:


	Andrew Vong wrote:
	
	
	

		Dear Gurus,
		
		Thanks for all who responded to my previous question. It
worked great!
		
		I am now trying to perform a "ps aux | grep "some
regular expression" | cut -f 2 -d ......"
		
		I seem to be having 2 problems.
		
		1) What delimiter should I define for cut? I've tried "
" (space) but that does not work.


	cut -c might be better, or "awk '{print $N}' where "N" is the
number of the column you want.
	
	If you're killing stuff, perhaps "killall" is what you want.
	
	

		2) I usually get 2 processes listed. The actualy one I'm
looking for and the line I just executed. How can I exclude the 2nd
process which also contains the same "grep /regular expression/" ?

	ps -ef | grep "f\\oo"
	
	works nicely.
	
	_______________________________________________
	Whitebox-users mailing list
	Whitebox-users at beau.org
	http://beau.org/mailman/listinfo/whitebox-users
	
	


At 12:41 AM 16/06/2005, Vincent Raffensberger wrote:


	'pgrep' will give you the pid:
	 
	$ pgrep ntpd
	2106
	 
	'pkill' could kill it for you.  See the manpage.
	 
	If you want specific ps info for a process, you could ask for it
along with the fields you want instead of using cut or awk.
	See the manpage for all the different fields you can select.
Here's an example:
	 
	$ ps -p `pgrep ntpd` -o pcpu,pmem,start,pid,cmd
	%CPU %MEM  STARTED   PID CMD
	 0.0  0.2   Jun 13  2106 ntpd -N -b -g -u ntp:ntp -p
/var/run/ntpd.pid
	 
	If you must grep the full ps output, you can omit the grep
process like this:
	 
	$ ps aux | grep [n]tp
	ntp       2106  0.0  0.2  5052 5052 ?        SLs  Jun13   0:01
ntpd -N -b -g -u ntp:ntp
	
	
________________________________

	From: whitebox-users-bounces at beau.org
[mailto:whitebox-users-bounces at beau.org] On Behalf Of Andrew Vong
	Sent: Wednesday, June 15, 2005 9:56 AM
	To: whitebox-users at beau.org
	Subject: [WBEL-users] Another Shell Scripting Question
	
	
	Dear Gurus,
	
	Thanks for all who responded to my previous question. It worked
great! 
	
	I am now trying to perform a "ps aux | grep "some regular
expression" | cut -f 2 -d ......"
	
	I seem to be having 2 problems. 
	
	1) What delimiter should I define for cut? I've tried " "
(space) but that does not work.
	2) I usually get 2 processes listed. The actualy one I'm looking
for and the line I just executed. How can I exclude the 2nd process
which also contains the same "grep regular expression" ?
	
	The above is part of a longer one-liner command I'm trying to
construct. I basically want to kill a specific process and I just want
to obtain the PID for it. So, it may end up looking like this??
	
	$ ps aux | grep "some regular expression" | cut -f 2 -d ...... |
xargs kill -9
	
	Or something along those lines... 
	
	Hope someone out there can help me. 
	
	Thanks again. :)
	
	Best Regards,
	Andrew
	

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