Using increment correctly with maskprocessor.

[Snoopy]

mp64 -i1:4 ?d?d?d?d

result in output 1 up to 9999

Sorry, this example is about the append the digits to a wordlist, I think your example only generates a wordlist of numbers, doesn't it?

Okay got it, you want to generate the rules okay, you hve to split it up, it will not work with -increment as it counts the lenght of the "output" so you have to use this

mp64 "$?d" >> your_rulefile
mp64 "$?d $?d"  >> your_rulefile
mp64 "$?d $?d $?d"  >> your_rulefile
mp64 "$?d $?d $?d $?d   >> your_rulefile

result will be a file with all rules for adding 1 up to 9999