Date: Tue, 7 Nov 2017 13:05:46 -0500 From: "James B. Byrne" <byrnejb@harte-lyne.ca> To: "Tim Daneliuk" <tundra@tundraware.com> Cc: freebsd-questions@freebsd.org Subject: Re: sed - remove nul lines from file Message-ID: <e24f74746e30761fa7bfe5ba62d5495c.squirrel@webmail.harte-lyne.ca> In-Reply-To: <c7a8f2d2-493a-6a34-efa5-570f00b5a988@tundraware.com> References: <b21bf201363c34a90ab55c4a05ff8fd7.squirrel@webmail.harte-lyne.ca> <c7a8f2d2-493a-6a34-efa5-570f00b5a988@tundraware.com>
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On Tue, November 7, 2017 12:46, Tim Daneliuk wrote:
> On 11/07/2017 11:12 AM, James B. Byrne via freebsd-questions wrote:
>>
>> I have a data file created by an ancient proprietary scripting
>> language called QTP. There is a bug in this program which, on
>> occasion, manifests itself by inserting output records consisting
>> entirely of nul (^@) (\x00) bytes at regular intervals. In the
>> present case every 47th. record consists entirely of nuls.
> <snip>
>
> I don't have the magic off the top of my head, but this might be a
> good job for 'tr'...
I have not found a way to get tr to actually delete the lines.
Getting rid of all the nul characters I can do using three different
ways that I know of. What I want to get rid of is the entire line.
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