[RndTbl] bash script for printing lines that don't match?

VE4PER/ Andy ve4per at aim.com
Tue Sep 18 12:54:01 CDT 2012


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On 18/09/12 17:35, Peter O'Gorman wrote:
> diff(1)?
>
> Peter
>
> On 09/18/2012 12:13 PM, John Lange wrote:
>> I think I've asked this in the past but try as I might I can't
>> remember what the answer was or figure out how I solved it before.
>>
>> I have 2 files that are nearly identical and I need to know which
>> lines in the two files do _not_ match.
>>
>> I can think of some relatively complex loops with grep etc. which
>> would probably work (for every line in file A, grep in file B etc.)
>> solve the problem but I'm hoping for something more elegant.
>>
>> I thought at first that perhaps "join" would do it but even though it
>> will provide left and right joins, there is no way to prevent it from
>> outputting the matching lines.
>>
>> Any ideas?
>>
>> John
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>
>
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