Ravi Sir's Cards › AWS
mapfile vs while read
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
Read
mapfile
All lines at once.
while read
One line at a time.
Key points
Fast, simple.
Low memory, can process.
Example
mapfile -t a < f
Use when
Small files.
Huge files.