: Before running, you must make the script executable using the command: chmod +x start2.sh .
The name start2.sh is a common convention used by developers to separate initialization logic. Instead of creating one massive, unreadable script, developers split tasks. For example: start2.sh
: Always start your script with #!/bin/bash or #!/bin/sh to tell the system which interpreter to use. : Before running, you must make the script