ubuntu@localhost:~/snap/hello-world$ cd 27/
ubuntu@localhost:~/snap/hello-world/27$ ls
ubuntu@localhost:~/snap/hello-world/27$ ls -al
total 8
drwxr-xr-x 2 root root 4096 Aug 24 11:34 .
drwxr-xr-x 3 root root 4096 Aug 24 11:34 ..