.... CLI commands
What are CLI commands
For GRUB Legacy (used in Pardus) have a look in System Settings > boot Manager and the General Usage Tips section
of the Wiki.
2) When the laptop screen goes blank, there is no way to bring it back.
Is your system going into a "Lock screen" mode
When my system is in a "Lock screen" mode, a touch any key is sufficient.
3) While working suddenly Firefox goes out and its not anywhere. Why?
Also not in the menu
4) How do I install source packages in the terminal?
It's no different from any other Linux system and depends on the package.
Which package do you want to install