Ravi Sir's Cards › AWS
Parameter expansion
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
Why do we need it?
Default if empty.
${env:-dev}
What is it?
Length.
${#name}
How to do it
Cut suffix.
${file%.log}
Example
Replace.
${s//a/b}