Ravi Sir's Cards › AWS
grep two words at once?
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
Basic grep treats | as text.
Why it matters
Use -E for alternation.
How / example
ERROR or FATAL.
grep -E 'ERROR|FATAL' app.log