sed - remove nul lines from file

James B. Byrne byrnejb at
Tue Nov 7 18:05:50 UTC 2017

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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James B. Byrne                mailto:ByrneJB at
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