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Regular expression to find illegal ipv6 information

I do not know bash, but I am familiar with regex in perl. I need a command like regex to find the following things within a bunch of text files:

1) domain.com without a trailing dot. So the text files should have domain.com. in them but should NOT have domain.com (without trailing dot). So I need to find any domain.com without the trailing dot.

2) I need to find any ipv6 reverse record node that is not formed correctly. If it is formed correctly it will have 16 hex digitals seperated by a dot. (ex. 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0)

I would like to simply run grep -regex- * if possible.

Thanks

ASKER CERTIFIED SOLUTION

Terry Woods

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Terry Woods

2) You'll need to give some details as to what counts as being "not formed correctly" - if there's a line in a file containing "hello", do you want that picked up because you were expecting 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0 instead? Or must there be, say, at least 10 . characters on the line before attention is paid to it?

Steven Vona

ASKER

This question can be deleted.

Terry Woods

I believe I gave a correct answer to at least the first part of question, so in my view, points should be awarded.

Steven Vona

ASKER

I would agree with you if every domain was domain.com. unfortunately there are hundreds of domains non of which are domain.com. your regex would return none.