#!/bin/csh -f
# Compare two files.  If they differ, offer to move one to the other,
# else offer to delete the first.
if (! -e $1:q) then
   beep "Error: $1:q does not exist"
   exit 1
endif
if (! -e $2:q) then
   beep "Error: $2:q does not exist"
   exit 1
endif
if (-d $2:q && ! -e $2:q/$1:q) then
   beep "Error: $2:q/$1:q does not exist"
   exit 1
endif

diff -s $1:q $2:q
if ($status) then
   mv -i -v $1:q $2:q
else
   rm -i -v $1:q
endif