128 lines
6.3 KiB
Markdown
128 lines
6.3 KiB
Markdown
% NCurses Disk Usage
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Ncdu is a disk usage analyzer with a text-mode user interface. It is designed
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to find space hogs on a remote server where you don't have an entire graphical
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setup available, but it is a useful tool even on regular desktop systems. Ncdu
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aims to be fast, simple, easy to use, and should be able to run on any
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POSIX-like system.
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## Notable updates
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Parallel scanning
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: Ncdu 2.5 adds support for parallel scanning, but it's not enabled by
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default. To give it a try, run with `-t8` to scan with 8 threads. If you're
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running an unusual setup, such as networked storage, odd filesystems,
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complex RAID configurations, etc, I'd love to hear about the performance
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impact of this new feature. Feedback is welcome on the [issue
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tracker](https://code.blicky.net/yorhel/ncdu/issues) or to
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[projects@yorhel.nl](mailto:projects@yorhel.nl).[^1]
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Binary export
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: Ncdu 2.6 adds a new binary export format that better works with parallel
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scanning, offers built-in compression and supports browsing directory
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trees that are too large to fit in memory. To give it a try, use the `-O`
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flag instead of `-o`.
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Colors
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: Ncdu has had color support since version 1.13. Colors were enabled by
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default in 1.17 and 2.0, and then later disabled again in 1.20 and 2.4
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because the text was not legible in all terminal configurations.
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If you do prefer the colors, add `--color=dark` to your [config
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file](/ncdu/man#configuration). Maybe at some point in the future we'll
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have colors that *are* readable in every setup.
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## Download <a href="/ncdu/feed.atom"><img src="/img/feed_icon.png" alt="Atom feed"></a>
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Static binaries
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: Convenient static binaries for Linux. Download, extract and run; no
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compilation or installation necessary:
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[x86](/download/ncdu-2.6-linux-x86.tar.gz) -
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[x86_64](/download/ncdu-2.6-linux-x86_64.tar.gz) -
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[ARM](/download/ncdu-2.6-linux-arm.tar.gz) -
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[AArch64](/download/ncdu-2.6-linux-aarch64.tar.gz).
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Zig version (stable)
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: 2.6 (2024-09-27 - [ncdu-2.6.tar.gz](/download/ncdu-2.6.tar.gz) - [changes](/ncdu/changes2))
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Requires Zig 0.12 or 0.13.
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The [Zig language](https://ziglang.org/) and compiler are still somewhat
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unstable, use the ncdu 1.x branch if this does not work for you or if you
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need a more stable compilation environment.
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C version (LTS)
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: 1.20 (2024-04-21 - [ncdu-1.20.tar.gz](/download/ncdu-1.20.tar.gz) - [changes](/ncdu/changes))
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Lags a bit behind on the 2.x version in terms of features and performance,
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but is still being maintained and perfectly usable.
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Development version
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: The most recent code is available on git:
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```
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git clone git://g.blicky.net/ncdu.git/
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```
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The repository is also available for online browsing on
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[Forgejo](https://code.blicky.net/yorhel/ncdu/) and
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[cgit](https://g.blicky.net/ncdu.git/).
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The 'master' branch represents the C version, the Zig version can be found
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in the 'zig' branch.
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License
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: MIT.
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## Packages and ports
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Ncdu has been packaged for quite a few systems, here's a list of the ones I am aware of:
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[AIX](http://www.perzl.org/aix/index.php?n=Main.Ncdu) -
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[Alpine Linux](http://pkgs.alpinelinux.org/packages?name=ncdu) ([2](https://pkgs.alpinelinux.org/packages?name=ncdu2&branch=edge&repo=&arch=&maintainer=)) -
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[ALT Linux](https://packages.altlinux.org/en/sisyphus/srpms/ncdu/) -
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[Arch Linux](https://www.archlinux.org/packages/?q=ncdu) -
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[CRUX](https://crux.nu/portdb/?q=ncdu&a=search) -
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[Cygwin](https://cygwin.com/cgi-bin2/package-grep.cgi?grep=ncdu) -
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[Debian](http://packages.debian.org/ncdu) -
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[Fedora](https://packages.fedoraproject.org/pkgs/ncdu/ncdu/) -
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[FreeBSD](https://www.freebsd.org/cgi/ports.cgi?query=ncdu&stype=all) -
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[Frugalware](https://frugalware.org/package/ncdu/) -
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[Gentoo](https://packages.gentoo.org/packages/sys-fs/ncdu) ([-bin](https://packages.gentoo.org/packages/sys-fs/ncdu-bin)) -
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[GNU Guix](https://guix.gnu.org/packages/N/) -
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[NixOS](https://github.com/NixOS/nixpkgs/blob/master/pkgs/tools/misc/ncdu/default.nix) -
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[OpenBSD](https://cvsweb.openbsd.org/cgi-bin/cvsweb/ports/sysutils/ncdu/) -
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[openSUSE](https://software.opensuse.org//download.html?project=utilities&package=ncdu).
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[OpenWRT](https://openwrt.org/packages/pkgdata/ncdu) -
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MacOS ([Fink](https://pdb.finkproject.org/pdb/package.php/ncdu) - [Homebrew](https://formulae.brew.sh/formula/ncdu) - [MacPorts](https://ports.macports.org/search/?q=ncdu&name=on)) -
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[Solaris](https://www.opencsw.org/packages/ncdu) -
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[Slackware](https://slackbuilds.org/repository/15.0/system/ncdu/) -
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[Ubuntu](https://packages.ubuntu.com/search?searchon=sourcenames&keywords=ncdu) -
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[Void Linux](https://voidlinux.org/packages/?arch=x86_64&q=ncdu).
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Packages for NetBSD, DragonFlyBSD, MirBSD and others can be found on
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[pkgsrc](http://pkgsrc.se/sysutils/ncdu).
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## Similar projects
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There's no shortage of alternatives to ncdu nowadays. In no particular order:
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- [Duc](http://duc.zevv.nl/) - Multiple user interfaces, C, scales beyond directories that fit in RAM.
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- [gt5](http://gt5.sourceforge.net/) - TUI/HTML, also supports diffing.
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- [gdu](https://github.com/dundee/gdu) - TUI/CLI, Go, supports ncdu JSON export and import.
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- [dua](https://github.com/Byron/dua-cli) - CLI, Rust.
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- [pdu](https://github.com/KSXGitHub/parallel-disk-usage) - CLI, Rust.
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- [diskonaut](https://github.com/imsnif/diskonaut) - TUI, Rust, treemap.
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- [dut](https://codeberg.org/201984/dut), CLI, C.
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- [godu](https://github.com/viktomas/godu) - TUI, Go, slightly different browser UI.
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- [tdu](https://github.com/josephpaul0/tdu) - CLI, Go, supports ncdu JSON export.
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- [TreeSize](http://treesize.sourceforge.net/) - GTK, using a treeview.
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- [Baobab](http://www.marzocca.net/linux/baobab/) - GTK, using pie-charts, a treeview and a treemap. Comes with GNOME.
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- [GdMap](http://gdmap.sourceforge.net/) - GTK, treemap.
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- [Filelight](https://apps.kde.org/filelight/) - KDE, using pie-charts.
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- [QDirStat](https://github.com/shundhammer/qdirstat) - Qt, treemap.
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- [K4DirStat](https://github.com/jeromerobert/k4dirstat) - Qt, treemap.
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- [xdiskusage](http://xdiskusage.sourceforge.net/) - FLTK, with a treemap display.
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- [fsv](http://fsv.sourceforge.net/) - 3D visualization.
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[^1]: If you want to run benchmarks, `-0 --quit-after-scan` can be useful to
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disable the browser interface, or run with `-0o/dev/null` to benchmark JSON
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export.
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