In Linux, you'll need to write some commands to do more with your PC.
These are some handy commands for Debian based (like Ubuntu and Linux Mint) distro's.
This is not for other types, like OpenSUSE, Fedora, Red Hat, etc.

Installing software: sudo apt-get install (APPNAME)
Uninstalling software: sudo apt-get remove (APPNAME)
Terminal to another directory: cd /(DIRNAME)
Permissions: chmod (VALUE between 111 and 777) /(DIRNAME)
Root access: sudo su
Root GUI access (GNOME): sudo ?
Root GUI access (KDE): sudo Konqueror
Root GUI access (Xfce): sudo Thunar
Make new directory in current dir: mkdir (DIRNAME)
Start app: (APPNAME)
Reset your (root) password: passwd