75 lines
1.5 KiB
Markdown
75 lines
1.5 KiB
Markdown
---
|
|
title: "kill"
|
|
tags: [ "Documentation", "Basics" ]
|
|
---
|
|
|
|
If you want to kill a program in a graphical environment, open a terminal and type:
|
|
|
|
# Graphical Programs
|
|
|
|
```bash
|
|
xkill
|
|
```
|
|
|
|
Then click on the application which you want to kill.
|
|
|
|
# All Programs
|
|
|
|
To kill a program, find it with:
|
|
|
|
```bash
|
|
pgrep discord
|
|
```
|
|
|
|
This will give you the UUID, e.g. `19643`.
|
|
|
|
Kill the program with:
|
|
|
|
```bash
|
|
kill 19643
|
|
```
|
|
|
|
# Types of Kill
|
|
|
|
To see an ordered list of termination signals:
|
|
|
|
```bash
|
|
kill -l
|
|
```
|
|
|
|
> 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP
|
|
|
|
> 6) SIGABRT 7) SIGBUS 8) SIGFPE 9) SIGKILL 10) SIGUSR1
|
|
|
|
> 11) SIGSEGV 12) SIGUSR2 13) SIGPIPE 14) SIGALRM 15) SIGTERM
|
|
|
|
|
|
You can select these levels with a '- number'.
|
|
Higher numbers are roughly equivalent to insistence.
|
|
|
|
For example:
|
|
|
|
```bash
|
|
kill -1 3498
|
|
```
|
|
|
|
This roughly means 'maybe stop the program, if you can, maybe reload'.
|
|
|
|
Or the famous:
|
|
|
|
```bash
|
|
kill -9 3298
|
|
```
|
|
|
|
This means 'kill the program dead, now, no questions, dead'.
|
|
|
|
**Beware** - if Firefox starts another program to connect to the internet, and you `kill -9 firefox`, this will leave all of Firefox's internet connection programs ("children") still there, but dead and useless.
|
|
|
|
# Sobriquets
|
|
|
|
- A dead program which sits there doing nothing is known as a 'zombie'.
|
|
- A program which is run by another program is called a 'child program'.
|
|
- A child whose parent program is dead is called an 'orphan'.
|
|
- A child who remains running despite being useless because the parent is dead is called an 'orphan zombie'.
|
|
|