You want to run a script backup.sh that requires root permissions. Which command correctly runs it with sudo and ensures the script's environment variables are preserved?

hard📝 Application Q15 of 15

Linux CLI - Users and Groups

You want to run a script backup.sh that requires root permissions. Which command correctly runs it with sudo and ensures the script's environment variables are preserved?

Asudo ./backup.sh

Bsudo -E ./backup.sh

Csudo -u root ./backup.sh

Dsudo --preserve-env=ALL ./backup.sh

Step-by-Step Solution

Solution:

Step 1: Understand environment preservation with sudo
By default, sudo resets environment variables for security. The -E flag preserves the user's environment.
Step 2: Evaluate options for preserving environment
sudo -E ./backup.sh uses -E which preserves environment variables. sudo --preserve-env=ALL ./backup.sh uses a longer form but --preserve-env=ALL is less common and may not be supported everywhere.
Final Answer:
sudo -E ./backup.sh -> Option B
Quick Check:
sudo -E preserves environment variables [OK]

Quick Trick: Use sudo -E to keep environment variables [OK]

Common Mistakes:

MISTAKES

Forgetting environment variables reset by sudo
Using sudo without -E loses variables
Confusing -u root with environment preservation

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More Linux CLI Quizzes

You want to run a script backup.sh that requires root permissions. Which command correctly runs it with sudo and ensures the script's environment variables are preserved?

Step 1: Understand environment preservation with sudo

Step 2: Evaluate options for preserving environment

Final Answer:

Quick Check:

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