Try this
#!/bin/sh
find "$1" -type d -empty
This script will run relative to the current directory. If you're in bds2
and pass it Documents
it will look for a directory in bds2
called Documents
. But you can pass it a relative or absolute path to your directory and it will work, e.g.
$ ./getemptydir.sh ../../Documents
$ ./getemptydir.sh ~/Documents
$ ./getemptydir.sh /Users/xyz/Documents
etc.
or from the Home directory, you would run
$ Documents/bds/bds2/getemptydir.sh Documents
If you wanted the script to always look in your home directory, you could include that in the script, e.g.
#!/bin/sh
find "$HOME/$1" -type d -empty