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The content of this article mainly focuses on how the kill command of the Linux system kills the process. The content of the article is clear and clear. It is very suitable for beginners to learn and is worth reading. Interested friends can follow the editor to read together. I hope you can get something through this article!

What do we do when we open a program and suddenly it locks up, stops running, or crashes unexpectedly? The most direct way is to kill the unresponsive program directly.

Method 1: Terminal terminal input: gnome-system-monitor, you can open system monitor

As shown in the figure:

Then find the appropriate process, right-click and select kill process.

Method 2: it can be realized by kill process id.

First of all, you need to know the process id. For example, if you want to kill the process firefox, you can find the process id of firefox through ps-ef | grep firefox:

Then the process can be shut down through kill 3781.

Add: 1. Kill-9 to force termination of exit, for example: kill-9 3781

two。 Special usage:

Kill-STOP [pid]

Send SIGSTOP to stop a process without destroying it.

Kill-CONT [pid]

Send SIGCONT (19, 18, 25) to restart a stopped process.

Kill-KILL [pid]

Sending a SIGKILL (9) forces the process to stop immediately and does not perform a cleanup operation.

Kill-9-1

Terminate all processes you have.

Method 3: killall kills the process through the name of the program

For example: killall firefox

Note: this command can use the-9 parameter to forcibly kill the process, killall-9 firefox

Method 4: pkill kills all processes directly through the name of the program

For example: pkill firefox

Method 5: you can kill graphics applications through xkill, such as firefox crash no response, you can use this command.

For example: using xkill, a white x appears, and then click the application you want to kill with the mouse, as shown in the figure

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