Downloading the latest file in an S3 bucket using AWS CLI? [duplicate]

Answer 1

And here is a bash script create based on @error2007s's answer. This script requires your aws profile and bucket name as variables, and downloads the latest object to your ~/Downloads folder:

#!/bin/sh
PROFILE=your_profile
BUCKET=your_bucket

OBJECT="$(aws s3 ls --profile $PROFILE $BUCKET --recursive | sort | tail -n 1 | awk '{print $4}')"
aws s3 cp s3://$BUCKET/$OBJECT ~/Downloads/$OBJECT --profile $PROFILE

Answer 2

The Above solutions are Bash for if one want to do the same thing in Powershell for downloading in windows using the follwing script :

# This assumes AWS CLI exe is in your path.
$s3location = "s3://bucket-name"
$files = $(aws s3 ls $s3location --recursive | sort | select -last 3)
$dlPath = "C:\TEMP"

foreach ($s3FileInfo in $files) {
    $filename = $s3FileInfo.Split()[-1]
    $path = "${s3location}/${filename}"
    aws s3 cp $path $dlPath
    echo("Done downloading ${path} to ${dlPath}")
}

Answer 3

FILE=`aws s3api list-objects-v2 --bucket "$BUCKET_NAME" --query 'reverse(sort_by(Contents[?contains(Key, \`$FILE_NAME_FILTER\`)], &LastModified))[:1].Key' --output=text`;aws s3 cp "s3://$BUCKET_NAME/$FILE" .

$BUCKET_NAME - is the bucket from which you want to download.

$FILE_NAME_FILTER - a string used as a filter for the name, which you want to match.

aws s3 cp " " - its in double-quotes because to also include files that have spaces in their names.