AWS STS get-session-token for MFA Bash script

aws-2fa.sh

# usage . aws-2fa.sh 1234
# unset previous session params
unset AWS_ACCESS_KEY_ID
unset AWS_SECRET_ACCESS_KEY
unset AWS_SESSION_TOKEN

# ARN value
arn='arn-value-here'

# get new session token from AWS
aws_sts_info=$(aws sts get-session-token --serial-number ${arn} --token-code $1)

# set new session params
export AWS_ACCESS_KEY_ID=$(echo ${aws_sts_info} | jq -r .Credentials.AccessKeyId)
export AWS_SECRET_ACCESS_KEY=$(echo ${aws_sts_info} | jq -r .Credentials.SecretAccessKey)
export AWS_SESSION_TOKEN=$(echo ${aws_sts_info} | jq -r .Credentials.SessionToken)

echo "AWS Session is set!"