ls

   This command will display the contents of a directory.  Typical arguments
   are:
         ls -a             shows all files, including hidden
         ls -l             shows files in wide display, similar to dir in DOS
         ls *.html         show files ending in .html
         ls WWW            show contents of WWW directory

cd

   This command will change the current directory.  Typical uses are:

         cd                return to home directory
         cd WWW            change to WWW directory
         cd ..             go to parent directory

mv

   This command will transfer a file to another place, without leaving a
   duplicate behind.  Can also be used to rename files.  Uses include:

         mv a.html WWW     move a.html to WWW directory
         mv a.html b.html  rename a.html to b.html

cp

   This command copies a file into another file.

	cp myfile.c oldfile.c      Copies 'myfile.c' into 'oldfile.c'

rm

   Erases a file.  Note that files cannot be recovered as in DOS.  Uses:

         rm *             erase the entire contents of a directory
         rm temp          erase file 'temp'
         rm *.*           DO NOT USE.  May cause unpredictable results,
                          including erasure of all directories.

pwd

   Shows current directory.  Useful if prompt does not include this
   information, as in DOS.