[magnus@89026985-c3a1-4466-909e-d4b724126379 ~]$ cat ./foo/bar/baz  
#!/bin/sh
echo `dirname $0`
[magnus@89026985-c3a1-4466-909e-d4b724126379 ~]$ ./foo/bar/baz        
./foo/bar
[magnus@89026985-c3a1-4466-909e-d4b724126379 ~]$