> I am not quite sure why it didn't work. First I tried to copy and paste
> then I typed it leaving what I thought were a couple of possible spaces
> and then I left no spaces but I couldn't get it to work. When I next
> boot up I will write some more info down and post it here.

The command consists of the following parts (which need to be separated by spaces, all on one line).
I'll give a quick explanation of each part:
> Tom Butz sent me an email saying that there are many operating systems
> that can be put on USB stick and run in memory.

Yes. Since most modern computers come without CD/DVD drives, these "live images" are usually transferred onto USB sticks rather than CDs or DVDs.

> This Manjaro that I am presently running is Illyria 18.0.

Do you know whether you are running a 32 or 64bit version?
You can run the following command in a terminal:
uname -i

On my 64bit Linux Mint, this outputs the following:
x86_64

A 32bit version, if I remember correctly, should output something like this:
i686

One last comment: are you looking at installing the Linux distro on your desktop's hard drive or do you just want to boot Linux from CD/DVD/USB stick?

Cheers, Peter
--
Peter Reutemann
Dept. of Computer Science
University of Waikato, NZ
+64 (7) 858-5174 (office)
+64 (7) 577-5304 (home office)
http://www.cms.waikato.ac.nz/~fracpete/
http://www.data-mining.co.nz/