Recover Accidentally Deleted Files in OS X via Terminal, "command not found"

Question

Hi!
I am trying to recover a folder from the trash. It was deleted 30 min ago. The command I am trying to use is;
Mys-MacBook-Pro:~ storedisk$ com.apple.Finder AppleShowAllFiles true
And the response is;
-bash: com.apple.Finder: command not found
When I open any Terminal window I get this message, I don't know if this is relevant;
Last login: Wed Nov 13 08:27:40 on ttys001
I have found some similar replies on the forum but they do not seem to work in my case. I'm new to Terminal so I would really appreciate the help to find the cause and to resolve my problem.
Thanks a lot!

Answer 1

Thank you so much. This is the reply that I got;
Mys-MacBook-Pro:~ storedisk$ ls -a .Trash
.                                        Cherry Blossoms
..                                        FLiCKS
.DS_Store                              Nicholas Nickleby (1977)
13 Tzameti                              Robin Hood (2010)
Catch-22 [1970]                              We Live in Public 2009
Mys-MacBook-Pro:~ storedisk$ mv .Trash/FLiCKS .
Mys-MacBook-Pro:~ storedisk$
Mys-MacBook-Pro:~ storedisk$ mv .Trash/FLiCKS
usage: mv [-f | -i | -n] [-v] source target
       mv [-f | -i | -n] [-v] source ... directory
It is the FLiCKS folder that I am trying to retreive. Does this mean that I can retreive it? And if so, when I use the command mv .Trash/filename, where should it appear? Sorry for not fully understanding the instructions.
I also tend to empty the trash cumpulsively, which is how this happened in the first place. Trying to empty the files already in the trash but accidentally having had this folder selected I emptied that and kept the files that I didn't want.
The trash folder still has the size as if the folder FLiCKS is still in there though, if that makes any difference?
Thank you for all of your help.