Stone Studio

Firstly, in case you don’t know, Dropbox is a cross-platform service for file sharing, synchronizing and backup. The application is free, along with basic use of the service (up to a limit of 2GB). However, by referring users to create a Dropbox account, both the user who is referring and the user who created the account get 250 MB extra space. Referring users allows you use up to 3 GB of space for free. And now, about using Multiple Dropbox instances (and obviously, multiple accounts) in the same time. Yes, there is a way to run multiple Dropbox instances on the same computer. Here is how:

For Linux, run the following command in a terminal:

HOME=$HOME/.dropbox-alt /usr/bin/dropbox start -i

This will launch the Dropbox initial setup for the folder called .dropbox-alt which does not exist, so you’ll be presented with the initial configuration. You can create a new account or use an existing one.

If you already had a Dropbox instance running, now there should be 2!
To run this second Dropbox instance at startup, paste the following command in a terminal:

sudo gedit /etc/rc.local

And paste the following line just before the "exit 0" last line:

su username -c "HOME=$HOME/.dropbox-alt /usr/bin/dropbox start"<

If the file doesn’t have "exit 0" on the last line, add it yourself. Basically, this is how the last two lines in the /etc/rc.local file should look like:

su username -c "HOME=$HOME/.dropbox-alt /usr/bin/dropbox start"
exit 0

Don’t forget to replace "username" with your username!
If you just want to start the second Dropbox instance manually, paste this in a terminal whenever you want to run it:

HOME=$HOME/.dropbox-alt /usr/bin/dropbox start

[via webupd8]