Zaloha.sh is described as 'Zaloha is a small and simple directory synchronizer:* Zaloha is a BASH script that uses only FIND, SORT and AWK.* All you need is the Zaloha.sh file (contains ~76 kB of program code and ~78 kB of documentation)' and is an app in the Backup & Sync category. There are seven alternatives to Zaloha.sh for a variety of platforms, including Windows, Linux, Mac, BSD and openSUSE. The best alternative is FreeFileSync, which is both free and Open Source. Other great apps like Zaloha.sh are rsync (Free, Open Source), Unison (Free, Open Source), Robocopy (Free) and RsyncOSX (Free, Open Source).
Robocopy, or "Robust File Copy", is a command-line directory replication command. It has been available as part of the Windows Resource Kit starting with Windows NT 4.0, and was introduced as a standard feature of Windows Vista, Windows 7 and Windows Server 2008.
XCOPY is a command used on PC DOS, MS-DOS, OS/2, Microsoft Windows, and related operating systems for copying multiple files or entire directory trees from one directory to another and for copying files across a network.
Zaloha_Snapshot is an add-on script to Zaloha to create hardlink-based snapshots of the backup directory (condition: hardlinks must be supported by the underlying filesystem type). This allows to create Time Machine-like backup solutions.