With hotkeys I could lauch applicatinos with Windows+shortcut keys, for example:

Windows Key + Delete = Lauch Filezilla

Anything like this for Linux Mint 13?

Thanks

Yes, it should have it built in. I don't use Mint, but in one of the menus you should find a section for keyboard shortcuts. Otherwise you can use xbindkeys to set up any keyboard shortcut your heart desires.

global and application specific shortcuts can be configured via system settings in KDE

There are default ones too.

http://forum.kde.org/viewtopic.php?f=22&t=97099

But easier way would be to use bash/zsh with auto-completion or alt-F2.

I have Mint with MATE on one machine. Go to Control Center-->Keyboard shortcuts or Applications-->Preferences-->Keyboard Shortcuts. (I have not used all the desktops that Mint offers; the path may be slightly different with different desktops.)

I found a video on how to set them up here: http://www.youtube.com/watch?v=D_r788q1A8g

Warning, the user has succumbed to Google's song and is attempting to "monetize" the video; there may be a short video at the beginning.

I looked at the video but what are the command lines? For example, what command line would be for Firefox portable on desktop?

The commands for various applications are generally fairly straightforward.

The directories where executable files are stored are usually in your path, so the command for Firefox is firefox, because the system will find it in your path. (If it were not in your path, the command would be /path-to-some/directory/firefox.)

The easiest way for someone new to Linux to find the commands for applications is to look in the menu editor for the distro he or she is using. In Mint, you can point the mouse at the Menu item on the taskbar, right-click, and select "Edit."

There are other ways, such as looking at the contents of /usr/bin and /usr/local/bin for applications, then starting them from the command line to verify that they are the commands you are looking for. You can also use the command line with find, locate, and whereis (example: whereis firefox). I prefer whereis to find applications, because it looks for executables; in contrast, locate will return everything regarding the query, including configuration files, libraries, hidden files; run whereis firefox, then run locate firefox and compare the outputs.

See the man pages for each of these commands to learn more (for example, from the command line, man whereis will display the manual page for whereis.

Hope this helps.