Here’s a little tip you might enjoy. I’ve been using this for some time now whenever I’m too lazy to remember how to extract something.
To extract any archive, and create a subdirectory if there is none in the archive, use this:
ark -b -a [archive(s)] …
-b is short for –batch, and just signifies that this will be handled without using the GUI. Note, that the KDE notification area will still be used for progress display.
-a is short for –autosubfolder, which creates a directory as mentioned above.
Have a look at ark –help for more things that can be done with the batch interface.