Unable to install Heroku toolbelt in Ubuntu AWS instance

Question

The following error is thrown while trying to install the Heroku toolbelt in the default Ubuntu AWS 12.04 AMI based instance

ubuntu@ip-11-121-123-115:~$ wget -qO- https://toolbelt.heroku.com/install.sh | sh

This script requires superuser access to install software. You will be prompted for your password by sudo.

 sh: 7: [[: not found
 sh: 29: [[: not found
 Installation complete

Answer 1

I solved this problem by doing the following:

$ wget https://toolbelt.heroku.com/install.sh
$ sudo sh install.sh

Hope it helps.

Answer 2

I think your sh is not a symlink to bash. Try

wget ...blah... | /bin/bash

and see if that helps.

--EDIT--

Ha! Would you believe it! Not 5 minutes after answering, I had the same problem. Here's the fix:

1. Download the install.sh file
2. Modify the line that says sudo sh to say sudo /bin/bash
3. Run it with /bin/bash install.sh

The cause is that on some Ubuntu's, /bin/sh is actually a link to /bin/dash (not bash). And the install script uses some bash-isms without actually checking to see if you're using bash or not.