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# Awk
## Basics
awk program file
Program is ;-separated pattern-action statements.
/pattern/ { action }
# e.g. (apostrophes to not interpolate shell vars
awk '/tt/ { print $1 }' awk.md
`$0` is whole line, `$1`, `$2`, ... are fields separated by `FS` (by default,
whitespace).
Set `FS` with `-F <sepstring>`
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