Ravi Sir's Cards › AWS
sed -i on prod is risky?
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
Preview without -i.
sed "s/old/new/" f
Why it matters
Keep a backup.
sed -i.bak "s/old/new/" f
How / example
Compare.
diff f.bak f