I want linux script to kill java program running on console.
Following is the process running as jar.
[rapp@s1-dlap0 ~]$ ps -ef |grep java
rapp 9473 1 0 15:03 pts/1 00:00:15 java -jar wskInterface-0.0.1-SNAPSHOT-jar-with-dependencies.jar
rapp 10177 8995 0 16:00 pts/1 00:00:00 grep java
[rapp@s1-dlap0 ~]$
You can simply use pkill -f like this:
pkill -f 'java -jar'
EDIT: To kill a particular java process running your specific jar use this regex based pkill command:
pkill -f 'java.*lnwskInterface'
pgrep -if 'java .*-jar'pkill -f "java.*$app"If you just want to kill any/all java processes, then all you need is;
killall java
If, however, you want to kill the wskInterface process in particular, then you're most of the way there, you just need to strip out the process id;
PID=`ps -ef | grep wskInterface | awk '{ print $2 }'`
kill -9 $PID
Should do it, there is probably an easier way though...
greps piped into awks!!! Shall we call this Useless Use Of Grep? Anyways, it's much better to use pkill with the -f option as anubhava mentioned (if you have pkill installed of course, and if it has the -f option).ps -ef | grep wskInterface | awk '{ print $2 }' kill -9 $PID" and found -bash: kill: (10395) - No such process. it actually killed the process but also give the errorps process itself... :-(. Don't use this method, use anubhava's instead.
ps -ef | grep wskInterface | grep -v grep | awk '{ print $2 }' ignores your own grep command.if there are multiple java processes and you wish to kill them with one command try the below command
kill -9 $(ps -ef | pgrep -f "java")
replace "java" with any process string identifier , to kill anything else.
Use jps to list running java processes. The command returns the process id along with the main class. You can use kill command to kill the process with the returned id or use following one liner script.
kill $(jps | grep <MainClass> | awk '{print $1}')
MainClass is a class in your running java program which contains the main method.
pkill -f for whatever reason does not work for me. Whatever that does, it seems very finicky about actually grepping through what ps aux shows me clearly is there.
After an afternoon of swearing I went for putting the following in my start script:
(ps aux | grep -v -e 'grep ' | grep MainApp | tr -s " " | cut -d " " -f 2 | xargs kill -9 ) || true
pkill javacount?