The JFSutils are a collection of utilities for managing the JFS, a 64-bit journaling file system created by IBM and later ported to the kernel Linux. The following commands are available:

1. fsck.jfs: check and repair a JFS file system or replay its transaction log.

2. logdump: dump the JFS journal log.

3. logredo: replay the JFS journal log.

4. mkfs.jfs: create a new JFS file system.

5. xchklog: save a JFS fsck log to a file.

6. xchkdmp: dump the contents of such a log file.

7. xpeek: a JFS file system editor with a shell-like interface.

NILFS is a log-structured file system supporting versioning of the entire file system and continuous snapshotting, which allows users to even restore files mistakenly overwritten or destroyed just a few seconds ago.

GlusterFS is a distributed scalable network file system suitable for data-intensive tasks such as cloud storage and media streaming. It allows rapid provisioning of additional storage based on your storage consumption needs. It incorporates automatic failover as a primary feature. All of this is accomplished without a centralized metadata server.

This is a file system client based on the FTP File Transfer Protocol.

This package provides the bcachefs command-line tool with many subcommands for creating, checking, and otherwise managing bcachefs file systems. Traditional aliases like mkfs.bcachefs are also included.

Bcachefs is a CoW file system supporting native encryption, compression, snapshots, and (meta)data checksums. It can use multiple block devices for replication and/or performance, similar to RAID.

In addition, bcachefs provides all the functionality of bcache, a block-layer caching system, and lets you assign different roles to each device based on its performance and other characteristics.

dbxfs allows you to mount your Dropbox folder as if it were a local file system using FUSE.

The WebDAV extension to the HTTP protocol defines a standard way to author resources on a remote Web server. Davfs2 exposes such resources as a typical file system which can be used by standard applications with no built-in support for WebDAV, such as the GNU coreutils (cp, mv, etc.) or a graphical word processor.

Davfs2 works with most WebDAV servers with no or little configuration. It supports TLS (HTTPS), HTTP proxies, HTTP basic and digest authentication, and client certificates. It performs extensive caching to avoid unnecessary network traffic, stay responsive even over slow or unreliable connections, and prevent data loss. It aims to make use by unprivileged users as easy and secure as possible.

However, davfs2 is not a full-featured WebDAV client. The file system interface and the WebDAV protocol are quite different. Translating between the two is not always possible.

APFS-FUSE is a read-only FUSE driver for the Apple File System (APFS). It is currently in an experimental state — it may not be able to read all files, and it does not support all the compression methods in APFS.

The FSQA regression test suite, more commonly known as xfstests, comprises over 1,500 tests that exercise (torture) both the user- and kernel-space parts of many different file systems.

As the package's name subtly implies, it was originally developed to test the XFS file system. Today, xfstests is the primary test suite for all major file systems supported by the kernel Linux including XFS, ext4, and Btrfs, but also virtual and network file systems such as NFS, 9P, and the overlay file system.

The packaged check script is not in PATH but can be invoked with the included xfstests-check helper.

BEES is a block-oriented, user-space deduplication agent designed for large btrfs file systems. It combines off-line data deduplication with incremental scanning to minimize the time your data spend on disk between being written and being deduplicated.

This package provides an implementation of overlay+shiftfs in FUSE for rootless containers.

Watcher may be used as a library or a program that can be used to efficiently watch a file system for changes. This package provides the following components:

include/wtr/watcher.hpp

C++ header library

watcher-c

C shared and static library

wtr.watcher

Command-line interface (CLI)

tw

Minimal, more human-readable CLI variant

Libeatmydata transparently disables most ways a program might force data to be written to the file system, such as fsync() or open(O_SYNC).

Such synchronisation calls provide important data integrity guarantees but are expensive to perform and can significantly slow down software that (over)uses them.

This price is worth paying if you care about the files being modified---which is typically the case---or when manipulating important components of your system. Please, do not use something called ``eat my data'' in such cases!

However, it does not make sense to accept this performance hit if the data is unimportant and you can afford to lose all of it in the event of a crash, for example when running a software test suite. Adding libeatmydata.so to the LD_PRELOAD environment of such tasks will override all C library data synchronisation functions with custom no-op ones that do nothing and immediately return success.

A simple eatmydata script is included that does this for you.

FSArchiver saves the contents of a file system to a compressed archive file, and restores it to a different file system and/or partition. This partition can be of a different size than the original and FSArchiver will create a new file system if none exists.

All standard file attributes supported by the kernel are preserved, including file permissions, timestamps, symbolic and hard links, and extended attributes.

Each file in the archive is protected by a checksum. If part of the archive is corrupted you'll lose the affected file(s) but not the whole back-up.

SiriKali is a Qt/C++ GUI application for managing encrypted folders. It supports various backends, including eCryptfs, CryFS, EncFS, gocryptfs, fscrypt, securefs, SSHFS, and Cryptomator.

An overlay FUSE file system that introduces non-determinism into file system metadata. For example, it can randomize the order in which directory entries are read. This is useful for detecting non-determinism in the build process.

An alternative implementation of the zfs-auto-snapshot service for Linux that is compatible with zfs-linux (now OpenZFS) and zfs-fuse.

On Guix System, you will need to invoke the included shell scripts as job definitions in your operating-system declaration.

This package provides an implementation of the exFAT file system, including command-line tools to validate exFAT file systems and to create new ones.

LIBNFS is a client library for accessing NFS shares over a network. LIBNFS offers three different APIs, for different use :

1. RAW, a fully asynchronous low level RPC library for NFS protocols. This API provides very flexible and precise control of the RPC issued.

2. NFS ASYNC, a fully asynchronous library for high level vfs functions

3. NFS SYNC, a synchronous library for high level vfs functions.

AVFS is a FUSE-based filesystem that allows browsing of compressed files. It provides the mountavfs command that starts a small avfsd daemon. When a specially formatted path under ~/.avfs is accessed, the daemon provides listings and content access on the fly. The canonical form of virtual file name is:

[basepath]#handler[options][:parameters][/internalpath]

Example file names:

• ~/.avfs/home/user/archive.tar.gz#ugz#utar/path/file

• ~/.avfs/#http:localhost|some|path

emacs-dired-hacks has dired-avfs module which enables seamless integration with avfs.

mergerfs is a union file system geared towards simplifying storage and management of files across numerous commodity storage devices. It is similar to mhddfs, unionfs, and aufs.

This package provides several command-line tools to transform a supported file system, such as XFS, into one of a different supported type, such as ext4. All existing file contents, names, and directories are preserved.

The conversion happens in place, without the need to create a complete copy of the original data. This lets you transform almost full file systems on systems where adding (sufficient) additional storage space is not an option.

Do not use this package when you could simply create an empty file system from scratch and restore from a back-up. Transformation is limited, slow, and significantly increases the risk of irreversible data loss!

Squashfuse lets you mount SquashFS archives in user-space. It supports almost all features of the SquashFS format, yet is still fast and memory-efficient.

This package provides the Linux kernel module for Bcachefs.

Bcachefs is a CoW file system supporting native encryption, compression, snapshots, and (meta)data checksums. It can use multiple block devices for replication and/or performance, similar to RAID.

In addition, Bcachefs provides all the functionality of bcache, a block-layer caching system, and lets you assign different roles to each device based on its performance and other characteristics.