To view currently running processes on the system with the ps command. It mostly return PID(Process ID), TTY(type of terminal ), TIME(process cpu use time),CMD(command used)
| 1 | ps -ef | List currently running process in full format |
| 2 | ps -ax | List current running process |
| 3 | ps -u <username> | Listing the processes related to specific user |
| 4 | ps -C <command> | Listing the process related to specific command |
| 5 | ps -p <pid> | Listing the process with pid |
| 6 | ps -ppid <ppid> | Listing with parent process id related process |
| 7 | pstree | Shows processes in hierarchy |
| 8 | ps -L | List all threads for a particular process |
Finding Process ID:
ps -ef | grep <installed package name>
example: ps -ef | grep tree
Linux Terminating : There are four ways to kill or terminate a process. commands allow you to run the system uninterruptedly after terminating a process without rebooting the system. commands can be internal or external.
| 1 | kill | To terminate a process is a kill command. You need to know the PID of the process |
| 2 | killall | It kills all the processes with the specified name in the system. |
| 3 | pkill | The pkill command uses the name of the process either by typing full name or partial name. |
| 4 | xkill | Command xkill is used to kill a process on X server without passing process name or PID |