What happens if a command inside your User Data script fails?

A failed command in EC2 user‑data does not stop the instance from launching—cloud‑init logs the error and continues running the remaining commands unless you add explicit error handling.
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On Linux EC2 instances, User Data scripts run as the root user by default, while on Windows they run under the Local System account.Amazon L..
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Yes — although user data is normally accessed from inside an EC2 instance, you can also view it externally through the AWS Console or EC2 AP..
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The key components you must select when launching an EC2 Linux instance are the AMI, instance type, key pair, network/security settings, sto..
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Losing an EC2 key pair means you cannot SSH into the instance using that key again, because AWS never stores your private key — but you can ..
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The command depends on your Linux distribution: sudo apt install apache2 on Debian/Ubuntu, sudo dnf install httpd on Fedora/RHEL/CentOS, and..
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