Text Manipulation

dbohdan/structured-text-tools

jq

stedolan/jq

simeji/jid

AWK

The AWK Programming Language

The AWK programming language : Aho, Alfred V : Free Download, Borrow, and Streaming : Internet Archive

Gawk: Effective AWK Programming - GNU Project - Free Software Foundation

Gawkinet: TCP/IP Internetworking with Gawk - GNU Project - Free Software Foundation