RE: Incrementing An Alpha Value In CL

<snip>
Today's task is to increment an alpha value in a CL (A to B to C...).
As some batch files process, I am to save the successfully processed
file members to an archive file and assign a batch ID character on the
end of each unique member name. I have a file identifer + Julian Date +
AlphaSeq, which for today would be `FL07215A`. If I process a second
batch today, it woud be `FL07215B`. I can capture the highest value of
the eighth character in the file member name with RTVMBRD - RtvMbrD
File(FILENAME) Mbr(*Last) RtnMbr(&LASTMEMBER) as the member names would
be in ascending order. I could then bump the character to the next
value and append it to the first seven characters of the member name.
</snip>

Sorry, I think this is where you use the power of ILE.

Make the CL, CLLE. Create an RPG module with name like GetNextFileName.
CALLPRC to get the next file name.
Bind together.

This is why we have ILE. Each language able to do what it does best.