I have a database that has addresses in it. The only characters allowed
are A-z 0-9 and ,()':.
The database also has other characters in it, but I want to delete all
the characters that are not allowed (because they crash my program that
prints the addresses to the printer.)
It's just a text file, so I could run sed on it, but how do you test for
just those characters?
Thanks,
Ash
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