Shell script to stop a java program

Question

Is there a way to stop a java program running using a shell script by knowing the name alone.I am using ksh shell

Knowing what name? If you know the name of the executable (which normally is java though), killall is your friend. — sfussenegger
– sfussenegger, Commented Jan 25, 2010 at 11:28
@sfussenegger: Probably he doesn't want to kill all java-processes, but only one specific. — Mnementh
– Mnementh, Commented Jan 25, 2010 at 11:31
@Mnementh that's what I'd expect too, but from the given information this is the best thing I could recommend. — sfussenegger
– sfussenegger, Commented Jan 25, 2010 at 11:33
you might also want to look at start-stop-daemon if the process you're trying to kill is meant to run as a daemon — sfussenegger
– sfussenegger, Commented Jan 25, 2010 at 11:49

Community · Accepted Answer · 2017-05-23 12:23:17Z

20

this should do the job

jps -l | grep org.example.MyMain | cut -d ' ' -f 1 | xargs -rn1 kill

jps -l: list java process with "full package name for the application's main class or the full path name to the application's JAR file."
grep: choose the process you like
cut -d -' ' -f 1: split the output in columns using delimiter ' ' and print only the first one (the pid)
xargs -rn1 kill: execute kill for each PID (if any)

note that you must run jps and xargs with the same user (or root) as you're running the process

edited May 23, 2017 at 12:23

CommunityBot

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answered Jan 25, 2010 at 11:43

sfussenegger

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2 Comments

Stefan Kendall Over a year ago

This will also work for windows machines, but you're going to need to do some environment detection to figure out which kill to use.

sfussenegger Over a year ago

@Odelya I've just added -r (--no-run-if-empty) to xargs to avoid this error.

diciu · Accepted Answer · 2010-01-25 11:33:28Z

6

Add a unique property to the JVM to identify it easily, e.g. for test.class

java -Duniquename=1 test

To kill it:

ps ax | grep uniquename | grep -v grep | awk '{print $1}' | xargs kill

answered Jan 25, 2010 at 11:33

diciu

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2 Comments

diciu Over a year ago

It works fine under KSH. Maybe you've made an error copying the command.

Stewart Over a year ago

'grep [u]niquename' is an alternative to 'grep uniquename | grep -v grep'

Mnementh · Accepted Answer · 2010-01-25 11:30:01Z

3

You can use jps identifying the process-id associated with the name of the started java-program (jps is a process-manager for java-programs). With this id you can kill the process normally.

answered Jan 25, 2010 at 11:30

Mnementh

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2 Comments

Harish Over a year ago

assuming my java file name is test.java and is running how to find it?

Mnementh Over a year ago

@Harish: After compiling it and executing it will be shown as 'test'. If you package it in an executable jar (test.jar) and execute via 'java -jar test.jar' jps shows 'test.jar'.

Adam Matan · Accepted Answer · 2010-01-25 11:48:05Z

1

You can use pkill:

pkill your_java_program_name

This would work if you run only one instance of the your program is running.

edited Jan 25, 2010 at 11:48

answered Jan 25, 2010 at 11:28

Adam Matan

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Comments

ghostdog74 · Accepted Answer · 2010-01-25 14:32:43Z

1

you can use -o option of ps to format your output,

ps -eo cmd,pid | awk '!/awk/&&/mycommand/{cmd="kill -9 "$2;system(cmd)}'

answered Jan 25, 2010 at 14:32

ghostdog74

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