Can `mv` move multiple files at once?

Yes, absolutely! The mv command is very flexible and can move multiple files to a directory at once.

To do this, you list all the files you want to move, and specify the destination directory as the very last argument.

mv file1.txt file2.txt file3.txt destination_directory/

Explicitly naming files:
If you have file1.txt and file2.txt and want to move both to testdir:
```
mv file1.txt file2.txt testdir/
```
Using Wildcards (Patterns):
If you want to move all .txt files in your current folder to testdir, you can use the asterisk * wildcard:
```
mv *.txt testdir/
```
Moving everything in a folder:
To move all files and subdirectories from the current location to testdir:
```
mv * testdir/
```

Important Note: When moving multiple items, the final argument must be an existing directory. If it isn't, the command will return an error.

Give it a try in your terminal! It's a great way to save time when organizing your project files.