Simple Linux/Mac function to easily generate an AWS MFA token for AWS CLI access

aws_mfa_simple_script.sh

#!/bin/sh

MFA_SERIAL="arn:aws:iam::ACCOUNT:USER"
AWS_PROFILE=PROFILE

function awstoken() {
   output=$(aws sts get-session-token --profile $AWS_PROFILE --serial-number $MFA_SERIAL --token-code "$@");
   aws_access_key_id=$(echo $output | jq -r '.Credentials.AccessKeyId')
   aws_secret_access_key_id=$(echo $output | jq -r '.Credentials.SecretAccessKey')
   aws_session_token=$(echo $output | jq -r '.Credentials.SessionToken')

   export AWS_ACCESS_KEY_ID=$aws_access_key_id
   export AWS_SECRET_ACCESS_KEY=$aws_secret_access_key_id
   export AWS_SESSION_TOKEN=$aws_session_token
}