ShellScripts/rsync-incremental-backups.sh

@@ -1,51 +0,0 @@
-#!/bin/bash
-
-# Script for performing incremental backups using rsync.
-
-# Set the script to exit if any command returns a non-zero status.
-set -o errexit
-# Set the script to treat unset variables as errors.
-set -o nounset
-# Set the script to exit if a pipeline returns a non-zero status.
-set -o pipefail
-
-# Define the source directory you want to back up.
-readonly SOURCE_DIR="<input folder>"
-
-# Define the directory where the backups will be stored.
-readonly BACKUP_DIR="<output folder>"
-
-# Get the current date and time in the format 'YYYY-MM-DD_HH:MM:SS'.
-readonly DATETIME="$(date '+%Y-%m-%d_%H:%M:%S')"
-
-# Create a path for the current backup using the datetime.
-readonly BACKUP_PATH="${BACKUP_DIR}/${DATETIME}"
-
-# Create a symbolic link called 'latest' that points to the most recent backup.
-readonly LATEST_LINK="${BACKUP_DIR}/latest"
-
-# Ensure that the backup directory exists.
-mkdir -p "${BACKUP_DIR}"
-
-# Use rsync to perform the backup:
-# - 'ahv' preserves permissions, owner, group, and provides verbose output.
-# - '--progress' shows progress during transfer.
-# - '--stats' shows statistics at the end of the backup.
-# - '--delete' removes files from the backup that are no longer present in the source.
-# - '--log-file' specifies a log file for recording backup details.
-# - '--exclude' excludes the '.cache' directory from being backed up.
-# - '--link-dest' specifies a directory with previous backups, enabling hard-linking of unchanged files.
-# - "${SOURCE_DIR}/" is the source directory to be backed up.
-# - "${BACKUP_PATH}" is the destination directory for the current backup.
-rsync -ahv --progress --stats --delete \
-  --log-file="${BACKUP_DIR}/${DATETIME}.log" \
-  --exclude=".cache" \
-  --link-dest "${LATEST_LINK}" \
-  "${SOURCE_DIR}/" \
-  "${BACKUP_PATH}"
-
-# Remove the symbolic link 'latest' to the old backup.
-rm -rfv "${LATEST_LINK}"
-
-# Create a new symbolic link 'latest' pointing to the most recent backup.
-ln -s "${BACKUP_PATH}" "${LATEST_LINK}"