Bash Cookbook

How it works...

The idea of this recipe is that if you have several repetitive tasks such as bulk operations and potentially multiple cores, you can perform tasks in parallel (often seen in the Linux world as Jobs). This recipe creates a single master that spawns several worker scripts into the background, which await input from the named pipe. Once they read input from the named pipe, they will echo it to the screen and then exit. Eventually, the master will exit too, removing the pipe along with it:

1. In step 1, we open a new terminal and create the two scripts: master.sh and worker.sh.

 

2. In step 2, we create the master.sh script. It uses two while loops to create n numbers of worker scripts with $I identifiers and then sends the same ...