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This article mainly introduces "how to use the Linux watch command". In daily operation, I believe many people have doubts about how to use the Linux watch command. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to use the Linux watch command". Next, please follow the editor to study!

Watch is a very useful command in Linux system. Almost all Linux distributions come with this gadget. Watch can help you monitor the running results of a command, saving you from running it manually over and over again.

Command format: watch [parameters] [Command] other operations:

Switching terminal: Ctrl + X

Exit watch:Ctrl + G

Command function: the output result of the command can be output to the standard output device, which is mostly used to execute the command periodically / regularly.

Command parameters: parameter details-n or-intervalwatch default to run the program every 2 seconds, you can use-n or-interval to specify the interval. -d or-differences use the-d or-differences option, and watch highlights the changed area. The-d=cumulative option highlights where it has changed (regardless of the most recent change or not). -t or-no-title closes the output of the watch command at the top of the interval, the command, the current time. The watch command uses the instance (1) to execute the uptime command repeatedly, by default, every 2s.

Watch ``uptime (2) to see the changes in the current directory file log.

Watch``-d ``"ls-l | grep log" Note that when the monitoring command contains pipes, you need to enclose them in quotation marks.

(3) check the average load of the system every 10 seconds.

Watch``-n10 ``cat`` / proc/loadavg (4) highlight the changes in the number of network connections every 1s.

Watch``-N1-d ``netstat``-ant at this point, the study of "how to use the Linux watch command" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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