system@labs:~$ ls -la
total 3
-rw-r--r-- Jun 24 14:32   index.html (you are here)
-rw-r--r-- Jun 24 14:32 linux.html -rw-r--r-- Jun 24 14:32 dba.html
type cd linux.html or cd dba.html to open a lab — or just click it. type help for more.
system@labs:~$