1. (Linux) Another extremely useful command is find. write a find command to do the following:
   1. list all files (and subdirectories) in your home directory
   2. list all files named fred1 in the /work directory
   3. list all files whose name starts with memo and which are owed by ann in the system
   4. list all files in the system that were modified within the last two days
   5. use find to grep for a pattern down a directory tree. Display all lines in all files in your login directory (or subdirectories) which contain the string "ListMe" Be sure to create some test data to show this works.