Bro,Thank you for this write up . It's good, but there is a error in Task 3 you have given (find / -type f -perm -o=w -name “*.sh”) in which wild card("*.sh") is not working for me so i have changed it with (find . -type f -perm -o=w -name *.sh) and it worked for me.......

Hope you find it helpful :)