CS476/576

Assignment #1

Due Midnight, Tuesday   Sept  18, 2001

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NAME

 
del - Delete Files
undel - Un-Delete Files

del    <File names>
undel    <File names>

The del command deletes a file f  under a directory d and saves it under another
directory:
                 $HOME/@/d/f
where $HOME is the home directory of the user.

The undel command restores a file f under $HOME/@/d/f and puts it under
directory d

Both commands accepts any number  of file names.
The following are  examples of using these two commands.

Examples:
%  pwd
%  /home/wahab/cs476/assignments/a1
%  rm f* k*
%  ls f* k*
%  touch f1 f2 k1 k2 k3 //To make sure these files exists
%  ls f* k*
      f1 f2 k1 k2 k3
% del f* k*
     The following files will be deleted:
     f1 f2 k1 k2 k3
     Do it? (y/n): n
     Fine....will not delete.
% del f* k*
     The following files will be deleted:
     f1 f2 k1 k2 k3
     Do it? (y/n): y
     Ok....
     Current Directory:
     /home/wahab/cs476/assignments/a1
     Restoration Directory:
     /home/wahab/@/home/wahab/cs476/assignments/a1
     Done.
% cd /home/wahab/@/home/wahab/cs476/assignments/a1
% ls f* k*
     f1 f2 k1 k2 k3
% undel f* k*
     The following files will be restored:
     f1 f2 k1 k2 k3
     Do it? (y/n): n
     Fine....will not  restore.
% undel f* k*
     The following files will be restored:
     f1 f2 k1 k2 k3
     Do (y/n): y
     Ok....
     Restoration Directory:
     /home/wahab/@/home/wahab/cs476/assignments/a1
     Original Directory:
     /home/wahab/cs476/assignments/a1
     Done.
% cd /home/wahab/cs476/assignments/a1
% ls f* k*
     f1 f2 k1 k2 k3
%
 

mkdir, mv