#!/bin/csh -f
# Loop, calling diffdel for all files in the current folder, comparing 
# them to copies in the specified target folder.

if ($#argv == 0) then
   echo "Usage: $0:t target_folder"
   exit 1
endif
if (! -e $1:q) then
   beep "Error: $1:q does not exist"
   exit 1
endif
if (! -d $1:q) then
   beep "Error: $1:q is not a directory"
   exit 1
endif

foreach filename (*)
   diffdel $filename:q $1:q
end