A CLI tool to allow quicker changing of the AWS_PROFILE env var. You can save it as /usr/local/bin/chp for easy access

chp.sh

#          Name: CHP	
#         Usage: . chp
#	         . chp [1|2|3]
#   Description: Quickly change the AWS_PROFILE environment variable
#        Author: Zoë Kelly (zoe@starshade.ca)
#       License: MIT
#       Created: 2020
#       Updated: 2020
##         Note:

# Set your desired values here
choice_1='root'
choice_2='prod'
choice_3='test'

# Check if script is being sourced
([[ -n $ZSH_EVAL_CONTEXT && $ZSH_EVAL_CONTEXT =~ :file$ ]] ||
 [[ -n $BASH_VERSION ]] && (return 0 2>/dev/null)) && sourced=1 || sourced=0

if ([[ $sourced == 0 ]] && [[ $1 != "p" ]]); then
    echo "$(tput setaf 1)You must source this tool$(tput sgr 0) e.g.:"
    echo "$(tput setaf 4). chp$(tput sgr 0)"
    exit 1
fi


if [[ $# == 1 ]]; then
	# CLI parameter flow
    if [[ $1 == 1 ]]; then
        export AWS_PROFILE=$choice_1
    elif [[ $1 == 2 ]]; then
        export AWS_PROFILE=$choice_2
    elif [[ $1 == 3 ]]; then
        export AWS_PROFILE=$choice_3
    elif [[ $1 == "p" ]]; then
    	# p for print
        :
    else
        echo "Invalid choice"
        return
    fi
else
	# "GUI" flow
    PS3='Change AWS_PROFILE to: '
    options3=("$choice_1" "$choice_2" "$choice_3")
    select opt3 in "${options3[@]}"
    do
        case $opt3 in
            "$choice_1")
                export AWS_PROFILE=$choice_1
                break
                ;;
            "$choice_2")
                export AWS_PROFILE=$choice_2
                break
                ;;
            "$choice_3")
                export AWS_PROFILE=$choice_3
                break
                ;;
        esac
    done
fi

echo "AWS_PROFILE = $AWS_PROFILE"