This Bash script was designed to run a bunch of different programs that were located inside a main directory with different sub-directories up to 2 down-levels, the core of the script represents:

#!/bin/bash
cd k=i

cd Lj
cd KiLj
simple main
cd ..
cd ..

cd ..

Were i is the number of the kth directory, j of the lth sub directory and simple is a costum alias-alocated script used for compiling and running C/C++ programs.