/usr/share/source-highlight/awk.lang is in libsource-highlight-common 3.1.7-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | # language awk
regexp = '/([^/]*)/'
keyword = "begin|break|close|continue|delete|do|else|end|exit|for",
"getline|gsub|if|index|length|match|next|print|printf|return|split",
"sprintf|sub|substr|system|tolower|toupper|while" nonsensitive
cbracket = "{|}"
include "sh.lang"
include "function.lang"
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