Comments on: How to Run or Repeat a Linux Command Every X Seconds Forever

By: Laura Morris

Laura Morris — Sun, 18 Jul 2021 15:58:01 +0000

Is there any chance you can help me with this? It is really blowing my mind.

I would like you to create a shell script that runs on an interval of your choosing (10 seconds, 15 seconds, 30 seconds, etc.).

The shell script should:

Log all processes that are running.
If a duplicate program(s) is executed, the shell script will automatically “kill” the process associated with the second instance of that particular program.

The script should:

Redirect the contents of your cron table to a file (Please allow the script to run long enough to capture the data.
You will also have to ensure some program is executed twice so the script will actually kill the process).

This is in centos

By: v0idkr4ft

v0idkr4ft — Wed, 22 Apr 2020 00:12:49 +0000

Thanks, used this plus "$(ls | shuf -n1)" to creating random animated gifs from a folder into a little animated pixel art slideshow in my terminal.

By: Sachin Tiwari

Sachin Tiwari — Fri, 06 Dec 2019 07:05:27 +0000

Any idea of how to use the watch and sleep commands together? Like watch -n 5 "cmd1; sleep 3; cmd2" e.g. watch -n 5 "date; sleep 3; date" This doesn't work as expected. :( The WAR that I have used is to move command to a script file and use it like watch -n 5 test.sh.

By: Jim

Jim — Fri, 01 Nov 2019 21:35:38 +0000

Sounds like you could easily make yourself a fork bomb with a small mistake.

By: coringa

coringa — Sat, 18 Nov 2017 23:24:40 +0000

Oh my god, thanks a lot, i was trying to use cron, but 1 minute is too long, you saved me, a simple command that do the job, thanks a lot man