simple 7zip extract command?

[Karen Lewellen <klewellen@xxxxxxxxxxxxxx>]

Hi All,
imagine some here use 7zip to extract files in Linux.
I have an archive of a program that I want to extract, keeping all of the 
sub directories in tact.
The file  was compressed with 7zip, that I have not used before.
My google  suggests  something like
 7z x file.7z
will do the trick, but wanted to ask as I am unsure how well the program 
will speak.
ideas?
Thanks,
Karen