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From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: rec.puzzles,comp.lang.lisp,comp.lang.python
Subject: Re: ( Substring function in Python, Lisp)  --  [Hijack]  contains  [hijk]
Date: Sat, 15 Feb 2025 23:43:10 -0800
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richard@cogsci.ed.ac.uk (Richard Tobin) writes:
> $ awk 'BEGIN {for(i=97; i<=118; i++) printf("%c.*%c.*%c.*%c.*%c\n", i,
> i+1, i+2, i+3, i+4);}' | while read e; do grep -i $e
> /usr/share/dict/words; done

Nice!  That picked up "Kilimanjaro" which my more complicated Python
script missed, because it didn't case-fold.