Watch usage in Linux

Watch is a very practical command. basically all Linux distributions have this tool. like a name, watch can help you monitor the running results of a command, saving you the need to run it manually over and over again. Directly connect to the command you want to run after watch, watch will...

 

Watch is a very practical command. basically all Linux distributions have this tool. like a name, watch can help you monitor the running results of a command, saving you the need to run it manually over and over again.

Directly following the command you want to run behind watch, watch will help you repeat and update the results on the screen.

By default, watch will run commands repeatedly between two seconds. you can also use the-n parameter to specify the time interval ~

Another practical parameter is-d. in this way, watch will help you highlight the changed area, which makes it clearer ~
Ctrl + c to exit ~

In Linux, watch periodically runs the next program and displays the execution result in full screen mode.

-D, -- differences [= cumulative] highlight changes
-N, -- interval = Cycle (SEC)

For example, watch-d free-m