INX Is Not X - Apps (was Life on the Command Line)

[Kent Paul Dolan]

Continuing this text tools for the command line
topic, subtopic "stuff for INX", is there a version
of text tool agrep (approximate grep) available for
Ubuntu?

It can be a lifesaver when looking for a word you
don't quite know how to spell in a large text
corpus, or when looking for a word you do know how
to spell, in search of it and all its close
misspellings, so you don't miss comments on a topic
just because the writer misspells a word you're
targeting, or when looking for a word deliberately
misspelled, like "Vlagra" when looking for spam
emails to eliminate.

xanthian.