cron - How to write a cronjob in amazon linux

Question

I have an EC2 instance and I have the following bash script which I need to run;

1. Every 1 minute
2. The same script every 12 hours

TOKEN=$(aws ecr get-login-password --region us-east-2)
# echo $TOKEN

CONVERT_ME="AWS:${TOKEN}"

BASE_64_ENCODED=$(echo -n "${CONVERT_ME}" | base64)

echo $BASE_64_ENCODED

jq -n --arg TOKEN $TOKEN '{"HttpHeaders": {"User-Agent": "Docker-Client/19.03.13-ce (linux)"},"auths": {"337198119645.dkr.ecr.us-east-2.amazonaws.com": {"auth": $TOKEN}}}' > ~/.docker/config.json

If I do something like below, it says command not found

* * * * * update.sh

So I tried crontab -e and put the above command, how can I make sure if it is executing? is there a timer we can track? or am I doing this all wrong?

Thank you

question from:https://stackoverflow.com/questions/65860789/how-to-write-a-cronjob-in-amazon-linux

Answer 1

Waitting for answers