Date: Tue, 7 Nov 2017 13:00:10 -0600 From: Tim Daneliuk <tundra@tundraware.com> To: freebsd-questions@freebsd.org Subject: Re: sed - remove nul lines from file Message-ID: <d9806d23-0e70-7edb-ca06-0d8bce9cc5f8@tundraware.com> In-Reply-To: <88b1870184a8810072fe503917cd86be.squirrel@webmail.harte-lyne.ca> References: <b21bf201363c34a90ab55c4a05ff8fd7.squirrel@webmail.harte-lyne.ca> <88a59a82-2902-9f63-0a94-bd23b910e7ad@gmx.com> <c2b1ffce6933bcb8f47c856a40d29b16.squirrel@webmail.harte-lyne.ca> <f51d6c8a-c91c-dc7c-6134-e276ec60b179@gmx.com> <88b1870184a8810072fe503917cd86be.squirrel@webmail.harte-lyne.ca>
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On 11/07/2017 12:14 PM, James B. Byrne via freebsd-questions wrote:
> Sigh. Thank you. That works. However, it also deletes any line that
> has even one NUL in it regardless of the presence of other non-nul
> characters on the line.
Methinks we need a more rigorous statement of reqirements here :)
To whit:
- A 'line' is something that ends with "\n".
- Any line that _only_ contains one or more NULL chars is to be removed
entirely.
- Any line that contains one or more NULL chars _and_ other chars is
to have those NULLs removed, leaving the remainder of the line intact.
- An empty line ("\n" only) is to be left untouched.
Is that correct?
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Tim Daneliuk tundra@tundraware.com
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