How to upgrade AWS CLI to the latest version?

Question

I recently noticed that I am running an old version of AWS CLI that is lacking some functionality I need:

$aws --version
aws-cli/1.2.9 Python/3.4.3 Linux/3.1         


        

Answer 1

For Ubuntu 16.04 I used parts of the other answers and comments and just reloaded bash instead of rebooting.

I installed the aws-cli using apt so I removed that first:

sudo apt-get remove awscli

Then I could pip install (I chose to use sudo to install globally with pip2):

sudo pip install -U awscli

Since I was doing this on a server I didn't want to reboot it, but reloading bash did the trick:

source ~/.bashrc

At this point I could use the new version of aws cli

aws --version