SNOBOL4 is an older programming language for the humanities. There are still several implementations for modern operating systems; for the public domain IBM OS/VS2 r3.8 (MVS) the Bell's Labs and SPITBOL370 implementations are available.

This book on the programming language ooRexx (compatible with its procedural predecessor Rexx) gives you an incredibly useful, productive and durable 'Swiss Army Knife' kind of programming tool. You can quickly create glue code, scripts, macros and even full blown applications for any operating system and deeply understand Rexx and ooRexx code easily and clearly.