admin-scripts/bin/rsync-backup

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#!/usr/bin/env bash
# A script to perform incremental backups with rsync
DATETIME="$(date '+%Y-%m-%d_%H:%M:%S')"
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readonly BACKUP_DIR="/mnt/backup"
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readonly BACKUP_PATH="${BACKUP_DIR}/${DATETIME}"
readonly LATEST_LINK="${BACKUP_DIR}/latest"
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TEMP_DIR=$(mktemp -d || echo "Failed to make temp dir"; exit 1)
chmod 700 "${TEMP_DIR}"
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trap 'rm -rf "${TEMP_DIR}"; exit 0' EXIT SIGHUP SIGINT SIGQUIT SIGTERM
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while read -r line; do
rsync -aAX "$line" "${TEMP_DIR}";
done </etc/rsync-includes.txt
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rsync -av --delete "${TEMP_DIR}/" --link-dest="${LATEST_LINK}" "${BACKUP_PATH}"
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rm -f "${LATEST_LINK}"
ln -sf "${BACKUP_PATH}" "${LATEST_LINK}"