What are Regular Expressions?
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Write once, run everywhere string handling

Also called Regex

Like file wildcards but more powerful

Find all Java html documentation

find /usr -type f | grep -i "[^/]*jav[^/]*\.html$"

How do you spell "phenomenologically"?

cat /usr/share/dict/words | grep -i "^ph.*n.*m.*ly$"

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Copyright (C) 2001 by Steve Litt, you can freely distribute unmodified copies if this copyright notice and disclaimer are intact.  This material originally appeared on Troubleshooters.Com.

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