You want to add user bob to the existing group admins without changing his primary group. Which command should you use?

hard📝 Application Q15 of 15

Linux CLI - Users and Groups

You want to add user bob to the existing group admins without changing his primary group. Which command should you use?

Ausermod -G admins bob

Busermod -aG admins bob

Cgroupadd -a bob admins

Dgroupmod -a bob admins

Step-by-Step Solution

Solution:

Step 1: Identify the correct command to add a user to a supplementary group
The usermod -aG group user command appends the user to the group without removing existing groups.
Step 2: Check other options for correctness
groupadd creates groups, not add users; usermod -G replaces groups instead of appending; groupmod modifies groups, not user membership.
Final Answer:
usermod -aG admins bob -> Option B
Quick Check:
Append user to group with usermod -aG [OK]

Quick Trick: Use usermod -aG to add user to groups safely [OK]

Common Mistakes:

MISTAKES

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