How to remove a symbolic link to a directory?
Remove the trailing slash:
With prompt:
$ rm test5
Without prompt:
$ rm -f test5
Try rm test5
(without the training slash).
The slash indicates that 'test5' is a direactory whereas it's actually a file linking to a directory.
You can run removing the trailing slash:
$ rm test5
This will remove the file (i.e. the symlink).
Alternatively you may use unlink:
$ unlink test5
Again you must omit the trailing slash since you are attempting to unlink the symlink not the directory.