#Python exit program and quit all processes how to#
How to Kill a Process in Linuxīefore we step ahead and execute a kill command, some important points to be noted: log-error=/var/log/mysqld.log -pid-file=/var/run/mysqld/mysqld.pid socket=/var/lib/mysql/mysql.sock -pid-file=/var/run/mysqld/mysqld.pid bin/sh /usr/bin/mysqld_safe -datadir=/var/lib/mysql # pidof mysqld Sample Output 1684Īnother way to achieve the above goal is to follow the below syntax. How about Customising the above output using syntax as ‘ pidof process‘.
To know all the processes and correspondingly their assigned pid, run the following ps command. Init decides and allows itself to be killed, where kill is merely a request for a shutdown. Init is the master process and can not be killed this way, which ensures that the master process doesn’t get killed accidentally. The first process that starts when Linux System is booted is the – init process, hence it is assigned a value of ‘ 1‘ in most cases. Every time a program starts, automatically a unique PID is generated for that process.Įvery Process in Linux has a pid. In order to kill a process, we need to know the Process ID of a process. SIGKILL is the most unsafe way among the above three, to kill a process that terminates a process without saving. SIGHUP is a less secure way of killing a process than SIGTERM.
For a kill command a Signal Name could be: Signal Name Signal Value BehaviourĬlearly from the behavior above, SIGTERM is the default and safest way to kill a process.