## Exercise 2

 1. Write a shell script, that:
    
     a. creates and enters a scratch directory
     b. writes lines ‹file1› through ‹file5› into ‹list.txt›
     c. creates (touches) all files listed in ‹list.txt›
     d. renames each ‹fileN› to ‹fileN.x› (use globs)
     e. rename each ‹fileN.x› to ‹fileN.y› (use ‹list.txt›)
     f. clean up

 2. A small hint: For b., use ‹for i in 1 2 3 4 5›. You can also use
    ‹seq 5›, like this: ‹for i in $(seq 5)›. If you use ‹seq›, you
    can easily make more files without typing yourself to death.

 3. Go on to ‹make.txt›:

     $ cat make.txt
