Ravi Sir's Cards › AWS
Why -aG, not -G?
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
What it is
-G alone replaces all groups.
Why it matters
-a appends to the list.
How / example
Safe add.
sudo usermod -aG docker priya