If you administer multiple Linux servers, Jack Wallen has an easy script you can use to run commands on all of those servers at once.

The steps described above are manifest in the following six commands: $ mkdir scripts $ cd scripts $ touch script.sh $ echo 'echo hello-world' >> script.sh $ chmod -R 777 . $ ./script.sh hello-world ...

To run commands simultaneously or in parallel, use the ampersand (&). However, keep in mind that using an ampersand sends the process to the background, allowing the next command to start immediately.