LINUX Note-watch command

Command format: watch[parameter [command]

The output of the command can be output to a standard output device, which is used for periodic execution of commands/timed execution commands

Command parameters:

-N or--interval watch defaults to run the program every 2 seconds, you can use-N or-interval to specify the time interval.

-D or--differences use the-D or--differences option Watch to highlight the changed area. The-d=cumulative option highlights the changes that have been made (regardless of the recent change).

Such as: Highlight the change of network link number every second

Watch-n 1-d Netstat-ant

LINUX Note-watch command