[Discuss] Please help with a BASH puzzle

[david at thekramers.net (David Kramer)]

Are these hex numbers?? bc can convert hex to decimal and do hex math.? 
The hard part is calculating the next value, and here's an example of 
doing that.

nextValue=`echo "obase=16; ibase=16; ${lastValue} + 1" | bc`

Then all you need to do is compare whether the next line you read is 
equal to nextValue.


On 8/23/19 6:32 PM, Bill Horne wrote:
> Thanks for reading this: I appreciate your time.
>
> I'm trying to do something that should be very easy to do, and yet I 
> can't remember how to do it, and I'm asking for help.
>
> I have an alpha-numeric, sorted file, that looks like this:
>
> 01AA
>
> 01AB
>
> 01AC
>
> 01AE
>
> 01AF
>
> .. etc.
>
> I'm trying to remember what BASH utility, script, or? command would 
> flag the missing value (in this case, "01AD"). There are, of course, 
> any number of ways to program a solution, but I can't remember which 
> of the BASH utilities will do it. All suggestion welcome, and thanks 
> in advance.
>
> Bill Horne
>
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