Script to fetch an MFA token for you to use temporary aws access credentials
I got this somewhere on github and made some changes to it to require less parameters and remember my MFA ARN. I copy this script with those hardcoded values set for each profile I need to run against and then just run:
mfa-account1.sh mfa-account2.sh
Be sure to update the following variables to match your AWS settings.
AWS_CLI_PROFILE="default" ARN_OF_MFA="arn:aws:iam::12345:mfa/user"
The profile name should be the name of the profile stanza in your ~/.aws/credentials file as used by the aws-cli.
The ARN should be the ARN of your MFA device as specified in the AWS console.