---
title: Install Directory Ownership and Mode Matrix on Linux | Snap Store
description: Get the latest version of Directory Ownership and Mode Matrix for Linux
  - Compare folder ownership inheritance and POSIX mode boundaries
url: https://snapcraft.io/directory-acl-matrix
---

# Directory Ownership and Mode Matrix (directory-acl-matrix)

[TC Studio (thanhcong1902)](https://snapcraft.io/publisher/thanhcong1902 "View all snaps from TC Studio (thanhcong1902)")

* [TC Studio (thanhcong1902)](https://snapcraft.io/publisher/thanhcong1902 "View all snaps from TC Studio (thanhcong1902)")

latest/stable 1.0.0

Install latest/stable of Directory Ownership and Mode Matrix

---

**Install using the command line**

```
sudo snap install directory-acl-matrix
```

Don't have snapd? [Get set up for snaps](https://snapcraft.io/docs/installing-snapd).

---

### Package name

* directory-acl-matrix

---

### License

* MIT

---

### Last updated

* Today - latest/stable

---

##### Report a Snap Store violation

* [Report this Snap](https://snapcraft.io/directory-acl-matrix#report-snap-modal)

---

* [Description](https://snapcraft.io/directory-acl-matrix#tab-description)
* [Security](https://snapcraft.io/directory-acl-matrix#tab-security)

#### Compare folder ownership inheritance and POSIX mode boundaries

Directory Ownership and Mode Matrix is a desktop filesystem ownership, POSIX permission
inheritance, and extended attribute boundary inspector for Linux. An independent Linux
utility inspired by AccessEnum, it walks directory trees, collapses subfolders and files
that cleanly inherit parent ownership and permission bits, and highlights only boundary
nodes where (UID, GID, mode) or extended attributes diverge from the parent directory.

Key Features:

* Ownership & Mode Inheritance Collapsing: Compares each directory and boundary file
  against its parent folder's UID, GID, and octal permission mask, collapsing matching
  descendants so administrators and developers can review permission transitions quickly.
* Read & Write Scope Matrix: Classifies effective read/traverse and write access scopes
  (Owner Only, Owner + Group, World Readable, Group Writable, World Writable) alongside
  SUID, SGID, and sticky mode bit indicators.
* POSIX Extended ACL & Xattr Decoder: Parses binary Linux system.posix\_acl\_access and
  system.posix\_acl\_default extended attributes directly from filesystem nodes into
  human-readable user, group, mask, and other entries, resolving numeric UIDs and GIDs
  against host passwd and group tables.
* Inheritance Analytics & Structured Export: Visualizes inheritance collapsing ratios
  and mode profile distributions, and exports complete boundary matrices to CSV and JSON.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by Microsoft Corporation.

---

## Install Directory Ownership and Mode Matrix on your Linux distribution

Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the [installing snapd documentation](https://snapcraft.io/docs/installing-snapd).

[### Arch Linux](https://snapcraft.io/install/directory-acl-matrix/arch)

[### CentOS](https://snapcraft.io/install/directory-acl-matrix/centos)

[### Debian](https://snapcraft.io/install/directory-acl-matrix/debian)

[### elementary OS](https://snapcraft.io/install/directory-acl-matrix/elementary)

[### Fedora](https://snapcraft.io/install/directory-acl-matrix/fedora)

[### KDE Neon](https://snapcraft.io/install/directory-acl-matrix/kde-neon)

[### Kubuntu](https://snapcraft.io/install/directory-acl-matrix/kubuntu)

[### Manjaro](https://snapcraft.io/install/directory-acl-matrix/manjaro)

[### Pop!\_OS](https://snapcraft.io/install/directory-acl-matrix/pop)

[### openSUSE](https://snapcraft.io/install/directory-acl-matrix/opensuse)

[### Red Hat Enterprise Linux](https://snapcraft.io/install/directory-acl-matrix/rhel)

[### Ubuntu](https://snapcraft.io/install/directory-acl-matrix/ubuntu)