The code what you have written is absolutely correct ...and it is not giving any errors.
i tried with your code by creating the files in my home directory....


Please segregate the do part from the line whre you are putting the semicolon..
can you tell me in which operating system you are working ...(may be it depends upon the o/s)


Try with this it will transfer the file .....
from one directory to another


path=/oracle/ora10gdb/sample
archive=/oracle/ora10gdb/archive
cd $path
echo `pwd`
for file in `ls`
do
mv $file $archive
done