Refresh output at an interval.
Section: Performance Monitoring and Troubleshooting
Run a command repeatedly
bash
bash
watch -n 2 'df -h && echo && free -h'Explanation
Great for observing changing state without rerunning commands manually.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Performance Monitoring and Troubleshooting
Show how the shell resolves a command
Reveal whether a name is an alias, builtin, function, or file.
Build command lines from stdin
Pass stdin items as arguments to another command.