upload-amazon-s3.sh

#!/bin/bash

# I am not the author of this script.
# Unfortunately I don't remember where I copied from.

file="${1}"
bucket="${2}"
s3Key="${3}"
s3Secret="${4}"

resource="/${bucket}/${file}"
contentType="application/octet-stream"
dateValue="$(date -R)"
stringToSign="PUT\n\n${contentType}\n${dateValue}\n${resource}"
signature="$(echo -en ${stringToSign} | openssl sha1 -hmac ${s3Secret} -binary | base64)"

curl \
  -X PUT \
  -T "${file}" \
  -H "Host: ${bucket}.s3.amazonaws.com" \
  -H "Date: ${dateValue}" \
  -H "Content-Type: ${contentType}" \
  -H "Authorization: AWS ${s3Key}:${signature}" \
  https://${bucket}.s3.amazonaws.com/${file}