AWK from and to pattern matches

Sat, 13 May 2023 00:00:00 GMT

when using awk to parse a file I was aware it uses this basic structure:

pattern { action }

seq 1 10 | awk '/2/{print $0}'

Outputs

and if you omit an action it defaults to print $0 ie print the whole matching line.

I was not aware however you can have multiple pattern seperated by , and it will match from the first pattern until the last pattern

Relevant excerpt from the man page:

A pattern may consist of two patterns separated by a comma; in this case, the action is performed for all lines from an occurrence of the first pattern though an occurrence of the second

Example

 seq 1 10 | awk '/2/,/8/'

Outputs

Discovered from: https://www.reddit.com/r/bash/comments/12z9snv/comment/jhrlrg2/

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AWK from and to pattern matches

Example