## Exercise 1

 1. Write a script that creates files with the following permissions
    (using touch and  ‹chmod›):
    
     a. ‹r-xr-xr-x file1.txt›
     b. ‹rwxr--r-x file2.txt›
     c. ‹---r--r-x file3.txt›
     d. ‹rw-r-xr-- file4.txt›
     e. ‹rwxr-xr-- file5.txt›
     f. ‹rwxr-xr-x file6.txt›

 2. Which of the above permission sets make sense? What would you
    say is the property that sensible permission sets have?

Let's look at encoding permissions in octal next, in ‹octal.sh›.
