Hi

I want check if a file is missing in a folder.
For example, below adc99446.txt is missing.

adc99442.txt
adc99443.txt
adc99444.txt
adc99445.txt
adc99447.txt

I tried subst() and val () to get the number but failed to use for and adir() to scan the files,
because I found no way use if a - b # 1 inside FOR command.

Could anybody help ?

Moises