TLDR
Enter a command. For example: gnome calculator, coredumpctl.

watch

 
Execute a command repeatedly, and monitor the output in full-screen mode. More information: https://manned.org/watch.
 
  • Monitor files in the current directory:
     
    watch {{ls}}
     
  • Monitor disk space and highlight the changes:
     
    watch -d {{df}}
     
  • Monitor "node" processes, refreshing every 3 seconds:
     
    watch -n {{3}} "{{ps aux | grep node}}"

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