Uploads a file up to Amazon's S3 Service, and provides a time limited URL to access.

Several options may be set via environment variables for ease of use.

--access-key <key> [ENV: AMAZON_ACCESS_KEY_ID] -- Amazon provided access key

--secret-key <key> [ENV: AMAZON_SECRET_ACCESS_KEY] -- Amazon provided secret key

--bucket <name> [ENV: S3LINK_BUCKET_NAME] -- Bucket to store the uploaded file

--expires-in <hours> [default: 24] -- How long the URL is valid for.

--never-expire -- Never expire the URL. If both expires commands are set, --expires-in will win.

--silent -- Quiet mode outputs ONLY the url

NOTE: This tool DOES NOT ever remove files from S3. Cleaning your S3 of old files manually is advised. Use the web interface, or the s3cmd tool.

WARNING: This tool will just silently overwrite a file that is already present. This is good to replace files with new versions, but bad if it destroys something. Don't destroy anything please.