Restore Files from Glacier on Amazon S3 Storage using Bash Script

restore.sh

#!/bin/bash

# Set your AWS region and S3 bucket name
REGION=eu-central-1
BUCKET=bucket-name

# List all objects in the bucket and change the storage class to Standard
aws s3api list-objects --region "$REGION" --bucket "$BUCKET" --query "Contents[?StorageClass=='GLACIER'].[Key]" --output text | while read -r line; do
  # Skip directories
  if [[ "$line" == */ ]]; then
    continue
  fi
  
  echo "Restoring \"$line\" to Standard storage class"
  
  # Use double quotes around the key variable to handle spaces
  aws s3api restore-object --bucket "$BUCKET" --key "$line" --restore-request '{"Days":25,"GlacierJobParameters":{"Tier":"Standard"}}' --no-cli-pager 2>&1
done