Safely Updating Existing Files in Go
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If you want to safely update an existing file in Go, the basic rule is simple: do not write to the original file directly. Instead, write the new content to a temporary file first, and replace the original file with rename only after the write is fully complete. In this article, I focus on Linux and explain three points: why direct overwrite is dangerous why using os.CreateTemp("", ...) can cause problems what to watch out for when systemd PrivateTmp is enabled Why you should not ov