The Complete Practical Docker Guide - SOLUTION - Script with Environment Variables Access

The video tutorial guides viewers through exporting a variable in the shell, creating and editing a file using the Nano editor, and understanding file permissions. It explains how to make a script executable and run it using both relative and absolute paths. The tutorial concludes with verifying the script's functionality and its ability to access environment variables.

What is the purpose of the shebang line in a script file?

• To declare variables

• To specify the script's interpreter

• To comment the script

• To list file permissions

Which command is used to change file permissions in Linux?

• chown

• chattr

• chgrp

• chmod

What does the 'chmod +x' command do to a file?

• Removes execute permission

• Adds execute permission

• Adds write permission

• Removes read permission

How can you run a script using a relative path?

• By specifying the full path

• Using './' followed by the script name

• By typing the script name directly

• Using the 'run' command

What does the script output when executed correctly?

• The current date and time

• The value of the 'my_name' variable

• A list of files in the directory

• An error message