# Dirvish

> filesystem based backup system using rsync

**Wikidata**: [Q134288684](https://www.wikidata.org/wiki/Q134288684)  
**Source**: https://4ort.xyz/entity/dirvish

## Summary
Dirvish is a filesystem-based backup system that uses rsync to efficiently create and manage backups of data. It is free software designed for backup and recovery purposes with support across multiple operating systems.

## Key Facts
- Dirvish is a filesystem-based backup system that utilizes rsync for data synchronization and backup creation
- Dirvish is licensed under the Open Software License as confirmed by its Debian changelog
- The software operates on BSD operating systems and has FreeBSD, NetBSD, and Gentoo package repositories
- It is officially documented with a man page (dirvish.8), a website (https://dirvish.org/), and a wiki (https://wiki.dirvish.org/)
- Dirvish is available as a package in major Linux distributions including Debian (since May 18, 2003), Ubuntu, and others
- It is classified as both backup software and free software in the software taxonomy

## FAQs
### Q: What operating systems support Dirvish?
A: Dirvish runs on BSD operating systems and is packaged for FreeBSD, NetBSD, Gentoo, as well as Linux distributions like Debian and Ubuntu.

### Q: Is Dirvish free software?
A: Yes, Dirvish is free software distributed under the Open Software License terms, which allow users to freely run, study, change, and distribute it and modified versions.

### Q: Where can I find documentation and community resources for Dirvish?
A: Dirvish is documented through an official website (dirvish.org), a wiki (wiki.dirvish.org), and a mailing list archive (lists.dirvish.org). It also has a traditional man page (dirvish.8).

## Why It Matters
Dirvish addresses critical data protection needs by providing a specialized, filesystem-based backup solution that leverages the efficiency of rsync. Its significance lies in offering a free, cross-platform backup option that has been maintained since at least 2003 with active community support through mailing lists and documentation. As open source backup software, it enables organizations and individuals to implement reliable backup strategies without licensing costs, contributing to data preservation and disaster recovery capabilities across diverse computing environments.

## Notable For
- Utilizing rsync for efficient, incremental filesystem backups that minimize storage space and transfer time
- Being free software with open licensing terms that allow full modification and redistribution
- Maintaining broad operating system support across BSD and major Linux distributions
- Providing comprehensive documentation including official website, wiki, and man page resources
- Having an active community presence through mailing lists and ongoing package maintenance since 2003

## Body
### Technical Specifications
Dirvish is fundamentally a filesystem backup system that operates by leveraging rsync technology for data synchronization. It creates and manages backup sets of file system data, making it suitable for routine data protection and recovery operations.

### Distribution Support
The software is widely packaged across different operating system distributions:
- Debian: Available as package "dirvish" since May 18, 2003
- Ubuntu: Package available with project ID "ubuntu/+source/dirvish"
- FreeBSD: Package available as "sysutils/dirvish" in the FreeBSD ports collection
- Gentoo: Listed as "app-backup/dirvish" in the Gentoo package repository
- NetBSD: Package available as "sysutils/dirvish"
- macOS: Available through MacPorts as "dirvish"

### Documentation Resources
- Official website: https://dirvish.org/ (in English)
- Official wiki: https://wiki.dirvish.org/ (in English, built on MoinMoin)
- Man page: dirvish.8
- Mailing list archive: https://lists.dirvish.org/pipermail/dirvish/

### Legal Status
Dirvish is copyrighted free software licensed under the Open Software License. The Debian project maintains the package and copyright information, with the most recent update recorded on April 30, 2025.

### Development History
- First appeared in Debian repository on May 18, 2003
- Maintains continuous presence in package repositories across multiple operating systems
- Development activity evidenced through ongoing package updates and documentation maintenance
- Community support provided through mailing lists and wikis

## References

1. [Source](https://metadata.ftp-master.debian.org/changelogs//main/d/dirvish/dirvish_1.2.1-2.1_copyright)
2. [Source](https://packages.debian.org/source/bookworm/dirvish)
3. [Source](https://lists.dirvish.org/listinfo/dirvish)