Hello,
I composed the big_square.py, medium_square.py, small_square.py unde linux_exam folder. I think I did everything the instructor said. however, i have taken the error below
user:~/catkin_ws/src/linux_exam$ ./task2.sh
Please enter one of the following;
small_square
medium_square
big_square
user:~/catkin_ws/src/linux_exam$ big_square
bash: big_square: command not found
user:~/catkin_ws/src/linux_exam$