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Grep patttern normalization

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Last Modified: 2013-11-13
I have two grep commands that convert 7 or 8 digit numbers to a path string to be processed further. I want to combine the two into a single command.

7-digit match: (\d\d)(\d)(\d)\d\d\d -> 0\0100000/\020000/\03000/&-*
8-digit match: (\d\d\d)(\d)(\d)\d\d\d -> \0100000/\020000/\03000/&-*

The gist: convert 7 digit match to proper "path" with leading zero, 8 digit match without.

Example in/out:
9094239 -> 09000000/90000/4000/9094239-*
9094247 -> 09000000/90000/4000/9094247-*
10000002 -> 10000000/00000/0000/10000002-*
10000013 -> 10000000/00000/0000/10000013-*

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