set:tldr:68747

The command "set -b" is used in shell scripting to enable job control and allow running processes to be stopped and resumed using signals.

Here's a breakdown of what each part of the command means:

• "set" is a built-in command in Unix-like systems that allows you to change the current shell settings or display the current settings.
• "-b" is an option or flag used with the "set" command. In this case, it stands for "notify of background job completion immediately."

By executing the "set -b" command, you are instructing the shell to notify you immediately when a background job completes. Normally, without this option, the shell waits for the command prompt to be displayed before notifying you of finished background jobs.