by Oliver; 2014
90. watch
If you prefix a command with
watch, it will repeat every 2.0 seconds and you can monitor it.
For instance, if a file in
/some/directory is growing, and you want to monitor the directory's size:
$ watch ls -hl /some/directory
Sometimes you want to monitor how much space you have left on your computer:
$ watch df -h .
If a program is churning away and slowly writing to a log file, you can watch the tail:
$ watch tail log.txt
Another example is using
watch in combination with the
Oracle Grid Engine's qstat to monitor your job status:
$ watch qstat
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