CSci 553
Spring 2006
Programming Assignment #1
Due Wed, Feb 8, 2006


1) ([UPU]Ch 8 Project, pg.319) Write a bash script called mv (which
   replaces the Unix command mv) that tries to rename the specified
   file (using the Unix command mv), but if the destination file
   exists, instead it creates an index number - a sort of version
   number - to append to the destination file.  So if you type

   $ mv a.txt b.txt

   but b.txt already exists, mv will move the file to b.txt.1 Note
   that if b.txt.1 already exists, you must rename the file to
   b.txt.2, and so on, until you can successfully rename the file with
   a name that does not already exist.


2) ([UPU] Ch 5, Exercise 5.2, pg 209) Write a bash shell script
   utility called junk that satisfies the following specification:

   Utility: junk [-l] [-p] {fileName]*

   junk is a replacement for the rm utility.  Rather than removing
   files, it moves them into the subdirectory ".junk" in your home
   directory.  If ".junk" doesn't exist, it is automatically created.
   The -l option lists the current contents of the ".junk" directory,
   and the -p option purges ".junk".

   For extra credit, use your modified mv command from part 1 so that
   if you junk a file that has the same names as an already junked
   file, it is saved in the .junk directory with a new version number.