Fetching error when installing Heroku

I'm trying to install the Heroku Toolbelt for a Django project in Lubuntu as described on the Heroku site:

$ wget -qO- https://toolbelt.heroku.com/install-ubuntu.sh | sh

However, this produces the following error:

sh: 1: Usage:: not found sh: 4: Syntax error: EOF in backquote substitution

What's going on here?

I'm getting familiar with the terminal commands, and I came across this command to install the Heroku toolbelt:

wget -qO- https://toolbelt.heroku.com/install.sh | sh

Now from here I gather that wget is used to download files from the internet through various supported protocols, and they'll download even if I logoff.

Is that right?

And I wanted to know two more things about that command :

I

I'm planning to set up a Django site on Heroku. It will run on Heroku's Cedar stack, which allows Python apps, but doesn't include or support HTTP upstream caching with Varnish like the other stacks do.

It will be a very read-heavy site and I'd like to use Varnish for HTTP caching.

I am trying to login to heroku but I keep getting this permission error:

administrator@ubuntu:~$ heroku login ! Heroku client internal error. ! Search for help at: https://help.heroku.com !

I'm trying to setup a Geotrust SSL certificate for my Heroku app using the SSL Endpoint addon and the instructions at https://devcenter.heroku.com/articles/ssl-endpoint.

I generated my public key from my private key using:

openssl rsa -in server.orig.key -out server.key

and added to the heroku certs:

heroku certs:add server.crt server.key

Everything seemed to be fine.

We host our application on Heroku. I'm wondering what can I do as a backup plan when Heroku doesn't work.

If I keep a backup of everything on Rackspace, when Heroku goes down, can I change to Rackspace in the moment? Any idea how that's done?

Thanks

I understand the title is not very suitable for this question.But,I have developed a facebook application in PHP,that will store images of users on server and create a link of that image.Since heroku doesn't allow to store files on their server,i am unable to move those files from /tmp folder to permanent folder.I don't have a credit card so can't signup with Amazon s3 storage to use it with herok

I'm hosting a SaaS application in Heroku and my service offers user groups a possibility to get their own subdomain address for the group.

Say, my service is www.example.com and a user group can get our_group_name.example.com as direct domain name for their group.

Deploying your web app to heroku is easy

What I want to know it is there any open source tools installed on your linux server so you can have the same deploying experience, since heroku buildpacks is all open source.