How to Bruteforce a part-known string?

[philsmd]

But it is the exact same thing for other length, if you want to do it in one run use for instance a script like this (untested, remove the "echo" if it seems to be ok for you):

Code:

hc_pre=""
for i in $(seq 5 8)
do
  hc_pre=${hc_pre}"?l"
  echo hashcat-cli32 -a 3 -o found.txt hash.txt ${hc_pre}2013 --pw-min $i
done

Note: for sure it is possible to do this even simpler or using other bash internals (e.g. looping w/ {5..8} etc) ... this is just a POC