-bash-3.1$ pwd
/home/marvin
-bash-3.1$ ls /usr1/stuff | grep foo
-bash-3.1$ mkdir foo
-bash-3.1$ perl -MFile::Copy -e 'move("foo", "/usr1/stuff/foo") or die $!'
Is a directory at -e line 1.
-bash-3.1$ mv foo/ /usr1/stuff/foo
-bash-3.1$ ls /usr1/stuff | grep foo
foo
-bash-3.1$