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This article mainly introduces the use of linux's top command to display process dynamics in real time, which has a certain reference value and can be used for reference by friends who need it. Let's take a look at it with me.

Top command is a commonly used performance analysis tool under Linux, which can display the resource consumption of each process in the system in real time, and is often used for server performance analysis.

In the top command, press f to view the displayed column information, and press the corresponding letter to open / close the column, with uppercase letters on and lowercase letters off. The one with a * is the default column.

Syntax format: top [parameters]

Common parameters:

-d change the update speed of the display, or press smurq in the conversational instruction line (interactive command) without any delay, if the user has the permission of superuser, top will execute-c switch display mode-s security mode in the highest priority order, cancel the conversational instruction, avoid potential crisis-I do not show any idle (idle) or useless (zombie) travel-n update times After completion, you will exit the top-b batch file mode and use it with the "n" parameter to output the results of top to the file.

Reference example

Display process information:

[root@linuxcool ~] # top

Displays the complete process information:

[root@linuxcool] # top-c

Display program information in batch mode:

[root@linuxcool] # top-b

Display program information in cumulative mode:

[root@linuxcool] # top-s

Set the number of information updates:

[root@linuxcool ~] # top-n 2 or above is to use the top command of linux to display the dynamic details of the process in real time. Have you learned anything after reading it? If you want to know more about it, welcome to the industry information!

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