kill - Send a specified signal to a process or process group.

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34 views

Kill a running shell script, and kill all process running within it

I have a shell script running in the background, which runs 5 different jobs. When I run the shell script all 5 jobs start running in order. When I kill this shell, whichever process is running, will ...
5
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1answer
44 views

Suspend process without killing it

So I've got a persistent program running in the background. Killing it just causes it to restart with a different PID. I'd like to suspend it (put it to sleep without actually killing it). Does kill ...
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3answers
861 views

Kill a nohup mpi process

I have started a program in parallel using the command: nohup mpirun -7 mylongprogram.py & I now want to terminate the program. When I want to kill the process by the command: kill -9 ...
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4answers
52 views

Why does killall command kill only one instance of the process?

Sometimes I need to kill Google Chrome (of which I have 2 windows/instances opened). Both instances are not in incognito mode. What I do is: (on Debian 8) killall chrome && killall chrome ...
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3answers
2k views

How to stop a bunch of processes on unix fast?

How to stop a bunch of processes on unix fast. I can use ps/top, kill. If the number of processes is very large, I use shell script. Are there other ways, only one or two unix commands can do it ...
3
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1answer
51 views

sigint not being propagated to background child process

I need to send SIGINT to terminate a process gracefully but I can't. This is a sample, because the environment in which the execution occurs is 'unknown' (a bash script in travis.com) I managed to ...
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3answers
23 views

Shutdown PC after suspending terminal process (apt-get upgrade)

What's going to happen if I shutdown my PC after suspending a terminal process (with Ctrl+Z)? In my case, it's sudo apt-get upgrade. The upgrade file size is 250 MB, it takes far more time downloading ...
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3answers
36 views

What does the option -9 mean for killall?

I saw the command killall -9 but there is not such a option in the man page. So now I'm a bit confused: what does -9 option mean?
8
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1answer
285 views

cabal dies on NixOS in KVM

I set up a NixOS system on KVM and installed the haskelPlatform package. Everything works fine, ghci works fine, but cabal dies without any helpful error message: [michas@nix:~]$ type -a cabal cabal ...
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2answers
43 views

How can I kill my backticked yes process?

I was playing around in my terminal, which runs zsh. I typed the following: $ ` bquote> yes bquote> ` And then, yes started to run in the background, I think. Neither Ctrl + C nor Ctrl + \ ...
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1answer
37 views

use exec -a to name process but run it in the background immune to CTRL-C

I would like to start a background process from bash script, but at the same time give it another name and also make it immune to CTRL-C. I tried the following: exec -a NiceName java -cp ....long ...
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2answers
112 views

What is the difference between kill , pkill and killall

I am familiar with kill command , and most of the time we just use kill -9 to kill a process forcefully , there are many other signals that can be used with kill. But i wonder what are the use cases ...
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1answer
40 views

How to kill telnet started via SSH?

I am sending a command to remote server via SSH as ssh raja@remote_host "telnet 192.168.56.101 8080" But we all know that , to quit from telnet we need to get back to telnet prompt with CTRL+^] ...
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votes
4answers
16k views

process id and killing process - ps commmand

Please see the output of below ps command: abc@smaug:~/Desktop$ ps ax | grep firefox 2213 ? Sl 2:01 /usr/lib/firefox/firefox 2644 pts/0 S+ 0:00 grep --color=auto firefox Please ...
2
votes
1answer
37 views

How is sudo interrupted in xterm on Ctrl-C? [duplicate]

Please explain in detail (including tty related stuff) how is a sudo foreground process on a X terminal emulator actually killed on the Ctrl-C. See the following example please: $ sudo -u test_no_pw ...
3
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1answer
39 views

Difference between less violent kill signal -HUP (1) -INT (2) and -TERM (15)

Apart from the most violent kill -9 (SIGKILL), I don't quite understand the difference between the 3 other common signals (here) -HUP (1), -INT (2), and -TERM (15). In which scenarios would one work ...
1
vote
1answer
26 views

How to programatically disconnect a ssh user?

I need to force a disconnect all sessions for a given user. Since this user might be root as well I think it would be better to avoid killing the parent sshd process along the way. Is there a ...
0
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1answer
32 views

How to extract all links from a given url in a decent time

I'm trying to extract the links from a specified url and redirect them to a file. At first I tried using --spider , this is my code: wget --spider --force-html -m http://file/path 2>&1 | grep ...
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0answers
59 views

killall doesn't work if I call it from a script

I'm starting a tcpdump inside a script and I also kill it from the same script. So I'm currently using the killall command for this: The script gets executed from an udev rule: This is the section, ...
1
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1answer
42 views

How to kill all processes using a given GPU?

I use the CUDA toolkit to perform some computations on my Nvidia GPUs. How to kill all processes that use a given GPU? (killing at once, i.e. without having to manually type the PIDs behind kill -9.) ...
1
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1answer
61 views

wait for predefined time before exit the script

I have an app server running in my unix box with process name as abc_test. I have a shell script in which I have to stop my server using /opt/abc/bin/stop. Now sometimes my server doesn't get stopped ...
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9answers
116k views

When should I not kill -9 a process?

I am always very hesitant to run kill -9, but I see other admins do it almost routinely. I figure there is probably a sensible middle ground, so: When and why should kill -9 be used? When and why ...
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2answers
71 views

Shell script to kill processes except those owned by user

I am Looking for some help in creating a script to kill processes, but return an error message if they are owned by root. Firstly I would like to say that I am a total beginner at this. At the moment ...
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3answers
125 views

How to kill a command executed from a script?

I would like to start a tcpdump in my own script an after some time I would like to kill it again. How can I access the PID from the tcpdump. I tried it with $$ , but this only kills the script. if ...
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1answer
42 views

Kill process on specific port

It has been asked before but how to do it with OpenBSD? I tried some different method but none worked. $ sudo fuser -k 80/tcp fuser: 80/tcp: No such file or directory $ kill $(sudo lsof -t -i:80) ...
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12answers
207k views

What if 'kill -9' does not work?

I have a process I can't kill with kill -9 <pid>. What's the problem in such a case, especially since I am the owner of that process. I thought nothing could evade that kill option.
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1answer
25 views

Can't find logical fault in script which should execute a tcpdump

I have written a script which compares the time and if it is the same start time like the current time and not like the end time it starts a tcpdump. And If the end time is like the current time it ...
2
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2answers
61 views

How to kill line of PID?

I have process which created multiple PID's. I want to kill all those PID's. I have tried pkill <process_name>. But PID not getting killed as they were wait to resource releasing. I have ...
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2answers
43 views

Is it possible to kill another user's process using sudo privileges?

I have sudo privileges on my home desktop running Fedora 22. I created a newuser with sudo useradd newuser and sudo passwd newuser. I then logged in as this newuser with su newuser, then switched back ...
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3answers
3k views

Is it possible to kill another user's program? How?

root can kill any program run by any user. Is it possible for a user to kill another user's program without using sudo, etc.? Example: How can make user foo kill program x which is run by user bar?
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2answers
58 views

Creating an automated idle process kill script

I would like to implement a solution to a specific instance of the generic problem wherein idle users tie up resources. I know the user list can be retrieved with 'w', the associated PID with 'ps', ...
0
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1answer
36 views

pkill in a script

I am trying to kill a process by his name in a script. Process : toto 15408 1 0 Nov13 ? 00:20:36 java -Xmx512m -XX:MaxPermSize=128m -cp /local/toto//conf/:/local/toto//lib/* ...
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1answer
141 views

AIX and oracle: aioserver process won't die

When shutdown an oracle server I see this error message at exit umount /oracle/ umount: error unmounting /dev/oracle: Device busy lsof and fuser report nothing but ps aux|grep oracle report this ...
2
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2answers
103 views

umount stalled and unable to kill its process

Sometimes when I remove SD card I can notice that when I reinsert it - it doesn't mount by itself. Also I've notice that umount process is stalled and I cannot kill it (not even with -9). I use ...
3
votes
1answer
58 views

Why does kill not work from script, but does work from terminal?

I have the following contrived script to illustrate my issue: #!/bin/bash set -eux sudo sleep 120 & spid=$! sleep 1 sudo kill $spid wait $! This will print $ ./test.sh + spid=21931 + sleep 1 ...
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0answers
21 views

Suspend using systemctl's hibernation scripts

The man page (or something similar, can't remember) of systemctl says tells us that we can put user-defined scripts into the system-sleep directory. All scripts in there will be executed before any ...
1
vote
1answer
101 views

How can I kill a program started from rc.local when Ctrl-C doesn't work?

I was trying to create a program that runs at start-up that takes a picture every 10 seconds (In a infinite loop) on my raspberry pi but I discovered I had made a mistake but couldn't Ctrl+C out of ...
2
votes
2answers
36 views

Can a tty be made unkillable?

I used PuTTY to ssh into a linux machine from a windows machine and I was just messing about with the pkill command. I quickly found out that I could log out of a remote session by typing w to show ...
2
votes
3answers
59 views

How to make init script print “OK” only when all subprocesses are stopped?

I have a very complex python application. It has it's own init script, but when I execute: sudo service my_service_daemon stop It prints "Stopping my_service_daemon [OK]", but in real ...
2
votes
1answer
26 views

How does kill by pgid affect new subprocesses?

I have a very complicated application, which has its init-script and main service runs as a daemon. I want to stop it fast and gracefully, so I used this in stop() function: group_id=$(ps -o pgid= ...
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0answers
63 views

program “killed” as soon as it runs

Ubuntu 12.04 I have success with make, and output a program name algo. When I type ./algo,the terminal just directly shows 'killed' And I searched the var/log/message or syslog kern.log. I don't ...
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0answers
47 views

CentOS Running process not responding to kill signals and not context switched

An updatedb process on my linux server is not responding to kill signals. (kill -9 or SIGSTOP) [root@chroot-1 ~]# ps auwx | grep -i 4505 root 4505 99.5 0.0 59544 1256 ? RN 09:43 ...
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4answers
19k views

Default exit code when process is terminated?

When a process is killed with a handle-able signal like SIGINT or SIGTERM but it does not handle the signal, what will be the exit code of the process? What about for unhandle-able signals like ...
1
vote
1answer
35 views

How do I know which Mosh Client I am?

When I try who, I frequently see output such as this: username pts/0 2015-10-09 04:48 (mosh [2680]) username pts/2 2015-10-12 00:04 (75.139.11.119 via mosh [12364]) username pts/6 ...
1
vote
1answer
79 views

pkill with regex

I have few java processes running like below, java -jar /my/path/to/app/myapp.jar java -jar /my/path/to/app/prodapp.jar java -jar /my/path/to/app/testapp.jar java -jar ...
0
votes
1answer
142 views

ps finds process, kill doesn't [duplicate]

Specifications [midas@localhost ~]$ uname -a Linux localhost.localdomain 4.0.4-301.fc22.x86_64 #1 SMP Thu May 21 13:10:33 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux and [midas@localhost ~]$ cat ...
2
votes
1answer
50 views

Trying to Write a Script to Kill Processes based on niceness

I am trying to write a script in bash that will kill any of my own processes (and run indefinitely) if those processes have a niceness value of 4 or lower. Can anyone tell me what might be wrong? ...
3
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3answers
2k views

Why can't I kill a timeout called from a Bash script with a keystroke?

[Edit: This looks similar to some other questions asking how to kill all spawned processes – the answers all seem to be to use pkill. So the core of my question may be: Is there a way to propagate ...
3
votes
2answers
459 views

Ctrl+Alt+Backspace to kill X server can't be disabled

I would like to disable the Ctrl+Alt+Backspace shortcut to kill my X server. I have tried disabling it in the gnome-keyboard-properties "Layout Options..." dialog. When I start the dialog, the option ...
1
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1answer
92 views

Unable to kill process, even with root. How to diagnose?

There are a lot of bash processes running on my Ubuntu Linux (12.04). Even when I close the terminal they are still shown in the System Monitor. I tried killing them as below, but they remain as it ...