text data developed by Alfred Aho, Peter Weinberger, and Brian Kernighan (the name derives from their initials). It is characterized by C-like syntax, a declaration-free approach to variable typing and declarations, associative arrays, and field-oriented text processing. See also Perl. 2. n. Editing term for an expression awkward to manipulate through normal regexp facilities (for example, one containing a newline). 3. vt. To process data using `awk(1)'.