Setting up Command auto completion for AWS CLI

Once you have installed the AWS CLI, it has the feature to auto complete the commands for you at the press of a TaB key. I am using a MAC & the commands here are pertaining to the Mac OS & the zsh shell is used.

To enable this, execute the foll. commands

1. Check the location of aws_completer
   which aws_completer

2. Check the shell using command echo $SHELL
   /bin/zsh

3. Find the profile script of shell
   ls -a ~/

In my case its the zsh & this shell does not have a profile script .zshrc created by default even if you are using the shell

1. Create the file using command:
   Touch ~/.zshrc

2. Add the path of the aws_completer to this:

PATH="/usr/local/bin/aws_completer:${PATH}"
export PATH

Add the below command to the .zshrc file so that the command completion works every time you open the shell

autoload bashcompinit && bashcompinit
autoload -Uz compinit && compinit

1. To enable command completion run the below command
   complete -C '/usr/local/bin/aws_completer' aws

2. Execute the command below to reproduce the above changes in current shell
   source ~/.zshrc

Verify the command completion using the

aws i(TAB key press)

For other OS's , please refer to the below documentation by AWS
https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-completion.html