Add SSH key to multiple bitbucket account.

First, make sure you have a default account setup through a tutorial like this one on bitbucket.

For the second account:

• Create a new ssh key using the below command :

ssh-keygen -f ~/.ssh/<second_account_name>

• Copy the second account public key and then add that key to the bitbucket account. To open the second account public key use the below command :

cat ~/.ssh/second_account_name.pub

• Now create a new config file under .ssh folder :

nano ~/.ssh/config  

• Add the following to your ~/.ssh/config file. The first sets the default key for bitbucket.org. The second sets your second key to an alias bitbucket-second-account for bitbucket.org :

Host bitbucket.org
  Hostname bitbucket.org
  IdentityFile ~/.ssh/id_rsa

Host bitbucket-second-account
  Hostname bitbucket.org
  PreferredAuthentications publickey
  IdentityFile ~/.ssh/second_account_name

• You can now clone projects with your default account the same way as you was doing before :

git clone git@bitbucket.org:bitbucket-username/project.git

• To clone a project with the second identity, replace bitbucket.org with the Host that you specified in the ~/.ssh/config file :

git clone git@bitbucket-second-account:bitbucket-username/project.git

• Now it's done but by any chance if you are getting any error like this :

Agent admitted failure to sign using the key

• Just use the below command to fix the above problem :

ssh-add ~/.ssh/second_account_name