Linux Commands
Kill the all processes in Linux
1. Finding the process id
Syntax:
ps aux | grep <process_name>
The aux options are as follows:
- a = show processes for all users
- u = display the process’s user/owner
- x = also show processes not attached to a terminal
Example:
ps aux | grep java | grep -v grep
Sample Output:
livy 76620 0.1 0.7 4123864 162124 ? Sl Mar01 2:51 /usr/lib/jvm/java-11-openjdk-11.0.17.0.8-2.el7_9.x86_64/bin/java -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPa
th=/tmp/livy_livy-LIVY_SERVER-e75484af0f16d6e5808d3b5e09cec82b_pid76620.hprof -XX:OnOutOfMemoryError=/opt/cloudera/cm-agent/service/common/killparent.sh -Xmx67108864 -Dsun.securi
ty.krb5.disableReferrals=true -Djdk.tls.ephemeralDHKeySize=2048 -cp /opt/cloudera/parcels/CDH-7.1.7-1.cdh7.1.7.p1000.24102687/lib/livy2/jars/*:/var/run/cloudera-scm-agent/process
/1546345579-livy-LIVY_SERVER/livy-conf:/var/run/cloudera-scm-agent/process/1546345579-livy-LIVY_SERVER/spark-conf:/var/run/cloudera-scm-agent/process/1546345579-livy-LIVY_SERVER/
spark-conf/yarn-conf: org.apache.livy.server.LivyServer
2. Killing the process
There are two commands used to kill a process:
- kill – Kill a process by ID
- killall – Kill a process by name
1. Kill the process using ProcessID
Syntax:
kill SIGNAL PID
Example:
kill -9 76620
2. Kill the process using ProcessName
Syntax:
killall SIGNAL ProcessName
Example:
killall -9 chrome
All steps in single line
export PROCESS_NAME=java
ps -ef | grep $PROCESS_NAME | grep -v grep | awk '{print $2}' | xargs kill
