David,
Thank you for your suggestion, but they are not only number, but alpha
values too.
Sorry, though: I chose poor examples. The file can contain any digit
0-9, and any alpha A-Z. There are no punctuation marks and no white space.
Sorted values range from 0000 to ZZZZ.
HTH.
Bill
On 8/23/2019 6:51 PM, David Kramer wrote:
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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