1. In your ubuntu, open course website (https://github.com/syracuse-fullstacksecurity/cis342) (e.g. using Firefox) and hit the green "Clone or download" button to download all the files into a .zip file. Extract the zip file and cd into "marw4" directory. Type command "make" to build and execute binary "a.out". Type command "ls" to list all files. Then type command "make clean" and command "ls" to show object files (with extension ".o") are gone.

2.We use the following command to compile `h2.c` as a library: `gcc -c h2.c -o liby.a`. Edit the file named "makefile" and add a new rule about the command. You may use `compilelib` as its label. And then type "make compilelib" to compile `h2.c` as a library.

3. We can compile `h1.c` and link it to the library we just created using command `gcc -o a.out h1.c -L. -ly`. Add this command to the makefile with a new rule named `liblink`. What argument do you provide to "make" so that it can link the library liby.