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Old 06-26-2004, 02:29 PM   #1
moskito01
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kill <pid> does not do anything


Hi,

I tried to kill a process that did not respond by issuing
kill <pid>
but the process is still there...

I thought kill can kill every Process?
Or what am I doing wrong...

Frank
 
Old 06-26-2004, 03:03 PM   #2
pgreenwood
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Re: kill <pid> does not do anything

Quote:
Originally posted by moskito01
I thought kill can kill every Process?
Or what am I doing wrong...

Try ~$ man kill

for example

...For a process to have permission to send a signal to a process designated
by pid, the real or effective user ID of the receiving process must match
that of the sending process or the user must have appropriate privileges
(such as given by a set-user-ID program or the user is the superuser)....

hth

Pat
 
Old 06-26-2004, 03:07 PM   #3
LinuxLala
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That in simpler terms would mean that a user does not have permission to kill a process being run by root. Only root can do that.
 
Old 06-26-2004, 04:38 PM   #4
bulliver
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Also, some processes are so screwed up that they will ignore a soft kill command. Running 'kill <pid>' asks the process to wrap up loose ends and tidy up then die. If the process is hung it may not listen. Try a 'kill -9 <pid>' which will kill it outright with no cleanup. Sometimes it is the only way to kill a hung/misbehaving process.
 
Old 06-28-2004, 01:46 PM   #5
moskito01
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Thanx, thats it

Thank you all.
I already knew that sufficient permissions are required to kill a process.
But I did not know the -9 Stuff.
Using kill -9 <pid> worked perfectly.

Frank
 
Old 06-28-2004, 01:50 PM   #6
IsaacKuo
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In my experience, if a process is out of control enough to require killing, the only thing that's going to snuff it out is a kill -9 anyway.
 
Old 08-23-2009, 10:54 PM   #7
coolnezz
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Kill -9 <PID> did it for me! (hung up "apt-get update" process)
thanks.
 
Old 08-23-2009, 11:10 PM   #8
manwithaplan
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Just as a side note... a utility I use that I find useful is HTOP. It gives a visual look @ all running pid's etc...
 
Old 08-23-2009, 11:48 PM   #9
i92guboj
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Quote:
Originally Posted by manwithaplan View Post
Just as a side note... a utility I use that I find useful is HTOP. It gives a visual look @ all running pid's etc...
Not only that, but it's quite handy to kill those mad processes. Press 'k', then select the signal you want to send to the process in the list that will appear to the left. In most cases, you will want either the default 15 (SIGTERM) or 9, as in the kill command above (SIGKILL).
 
Old 08-25-2009, 12:20 PM   #10
coolnezz
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just installed HTOP... nice!
 
  


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