Please refer to this link to see what I am talking, as it might make a whole lot more sense.
On this page it says that the tutorial has to be downloaded. There is text that appears to be a command, but it does not say where to type this command. I assumed this command should be typed in the terminal window of the QIIME2 machine in virtual box (I have the latest update installed). I interpret the "in []" to mean type this command in brackets. I copied/pasted the command in brackets, even again not in brackets. I've repeated this a few time, each time getting the same result:
bash: !tar: event not found.
I assume this is python lingo for "it didn't work."
I am attempting to upload a screen shot for further clarification, but my screenshot file only appears like text to me.. I don't know if this works, hopefully you can see it after I post this.
These are actually tutorials for QIIME 1.9, you can find the tutorials for QIIME 2 at docs.qiime2.org.
If you use those, I suspect you'll have a lot more success.
Thanks for the screenshot! It looks like you have a good installation!
Bonus Info:
Since you are new to this I wanted to explain a bit what is going on with your example:
You were copying and pasting commands from an IPython notebook. It's a nice way to run Python code interactively (letting you run a little bit of code and then seeing what happens), but it's also convenient to run "shell" or "bash" commands in. Because the Python language never uses the ! character, IPython decided that any line of code that starts with that, it will treat as a shell command.
Unfortunately, when actually running in bash (your terminal in the screenshot), the ! does have a meaning which results in errors like you observed:
If you just remove the ! you will be able to run the tar command. Which is a program that you can usually find in bash environments like the one you have.
In QIIME 2, we put all of our commands behind a single qiime command. This way there's only ever 1 program that bash has to find instead of hundreds. It also makes it easy to tell when you are working with QIIME 1 or QIIME 2.
QIIME 1 will look something like this: some_kind_of_action.py -i whatever
whereas QIIME 2 will look like this: qiime some kind-of-action --i-thing whatever
Hope that gives some background, good luck with your analysis!