Write a script named makedoto.sh that accepts as arguments a few .c filenames and for each filename prints on the terminal the same filenames but with the .c ending replaced by a .o ending. You do this by having a for loop that iterates over all the script arguments (aka positional parameters) and assigns to a shell variable the filename with the .c ending stripped and then prints the stripped name with a .o attached to it. You can use either basename or the bash the bash ${ mechanism to remove a suffix pattern.