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This article mainly explains "how to view the progress of Linux", the content of the explanation is simple and clear, easy to learn and understand, now please follow the editor's ideas slowly in depth, together to study and learn "how to view the process of Linux" bar!

The ps ax command displays a list of current system processes, including processes owned by other users. To display processes and their owners, use the ps aux command. The list is a static list; in other words, it is a snapshot of the process that was running when you enabled this command. If you need Linux to see a list of running processes that are updated at a time, use the top command described below.

The output of the Linux view process ps can be very long. To prevent it from slipping quickly across the screen, you can pipe it to the less command:

Ps aux | less

You can use Linux to view the combination of the ps command and the grep command to see if a process is running. For example, to determine whether Emacs is running, use the following command:

Ps ax | grep emacs

The Linux View processes top command shows the currently running processes and important information about them, including their memory and CPU usage. The list is both real-time and interactive. An example of the output of top is provided below:

19:11:04 up 7:25, 9 users, load average: 0.00, 0.05, 0.12

89 processes: 88 sleeping, 1 running, 0 zombie, 0 stopped

CPU states: cpuusernice systemirq softirq iowaitidle

Total6.6%0.0%0.0%0.0% 0.0% 0.08% 192.8%

Cpu006.7%0.0%0.1%0.1% 0.0% 0.0% 92.8%

Cpu010.0%0.0%0.0%0.0% 0.0% 0.00% 100.0%

Mem: 1028556k av, 241972k used, 786584k free,0k shrd,37712k buff

162316k active, 18076k inactive

Swap: 1020116k av,0k used, 1020116k free99340k cached

PID USER PRI NI SIZE RSS SHARE STAT CPU MEMTIME CPU COMMAND

1899 root 150 17728 12M 4172 S 6.5 1.2 111:200 X

6380 root 150 1144 1144884 R 0.3 0.10:000 top

1 root 150488 488432 S 0.0 0.00:051 init

2 root RT0 000 SW0.0 0.00:000 migration/0

3 root RT0 00 0 SW0.0 0.00:001 migration/1

4 root 150 000 SW0.0 0.00:000 keventd

5 root 34 19 000 SWN0.0 0.00:000 ksoftirqd/0

6 root 34 19 00 0 SWN0.0 0.00:001 ksoftirqd/1

9 root 250 000 SW0.0 0.00:000 bdflush

7 root 150 00 0 SW0.0 0.00:001 kswapd

8 root 150 00 0 SW0.0 0.00:001 kscand

10 root 150 00 0 SW0.0 0.00:011 kupdated

11 root 250 000 SW0.0 0.00:000 mdrecoveryd

To exit top, press the [Q] key.

Interactive commands that can be used with the Linux viewer process top include:

Command description

[Space] refresh the display immediately

[h] display the help screen

[K] kill a process. You will be prompted to enter the process ID and the signal to send to it.

[n] change the number of processes to display. You will be prompted to enter the quantity.

[U] sort by user.

[M] sort by memory usage.

[P] sorted by the amount of CPU.

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