Ravi Sir's Cards › AWS
Make sed edits repeatable?
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
Runs twice may double edits.
Why it matters
Match the full old value.
How / example
Set a value exactly.
sed -i 's/^Port .*/Port 2222/' sshd_config