Linux example of awk

* awk

awk '/asdf/' file

: print a line including asdf

awk '/^(asdf | qwer)/' file

: print a line including asdf or qwer

awk '{print $1 $3}' file

: print first and third fields of file without space

awk '{print $1, $3}' file

: print first and third fields of file with space

awk '$2 == "AS" {print $1, $2}' file

: if second field is AS, print first and third fields of file with space



Thanks,

JF


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