script to download file from Amazon S3 bucket

Question

Trying to write script to download file from Amazon S3 bucket.

Having trouble with the example on the cURL site. The script below produces:

The re

Answer 1

As of August 2019 I found this to work. Has added region, and format of URL has changed.

#!/bin/sh 
outputFile="/PATH/TO/LOCALLY/SAVED/FILE"
amzFile="BUCKETPATH/TO/FILE"
region="YOUR-REGION"
bucket="SOME-BUCKET"
resource="/${bucket}/${amzFile}"
contentType="binary/octet-stream"
dateValue=`TZ=GMT date -R`
# You can leave our "TZ=GMT" if your system is already GMT (but don't have to)
stringToSign="GET\n\n${contentType}\n${dateValue}\n${resource}"
s3Key="ACCESS_KEY_ID"
s3Secret="SECRET_ACCESS_KEY"
signature=`echo -en ${stringToSign} | openssl sha1 -hmac ${s3Secret} -binary | base64`
curl -H "Host: s3-${region}.amazonaws.com" \
     -H "Date: ${dateValue}" \
     -H "Content-Type: ${contentType}" \
     -H "Authorization: AWS ${s3Key}:${signature}" \
     https://s3-${region}.amazonaws.com/${bucket}/${amzFile} -o $outputFile