watch:tldr:e6c11

The watch command is used in Unix-like operating systems to execute a given command repeatedly in a specified interval and display the updated output on the console screen. The syntax of the watch command is as follows:

watch [options] command

In the given command:

watch -n ${60} ${command}

• -n: This option is used to specify the interval at which the command will be executed. In this case, ${60} is used as a placeholder for a value (60 in this case) to be substituted. It means that the command will be executed every 60 seconds.
• ${command}: This is also a placeholder for a command to be substituted. It represents the actual command or script that will be executed repeatedly.

So, in summary, the command watch -n ${60} ${command} will repeatedly execute the command specified by ${command} every 60 seconds, and display the updated output on the console screen.