acl ☆

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Description:
Commands for manipulating POSIX access control lists

Type: Formula | Latest Version: 2.3.2@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: permissions acl filesystem security posix utilities

Install: brew install acl

About:
ACL provides a set of command-line utilities to manipulate POSIX Access Control Lists (ACLs) on filesystems. These tools allow for fine-grained permission management beyond the standard Unix user/group/other model. This enables administrators to define complex access rules for specific users and groups on files and directories.

Key Features:

getfacl: View ACLs on files and directories
setfacl: Apply, modify, or remove ACLs
chacl: Change ACLs interactively
Support for both access and default ACLs on directories

Use Cases:

Granting specific users write access to a shared directory without changing file ownership
Setting up directory inheritance where new files automatically receive specific permissions
Auditing current permissions on a filesystem with detailed ACL output

Alternatives:

chmod/chown – Standard Unix commands that only handle basic user/group/other permissions, lacking the granularity of ACLs.

License: GPL-2.0-or-later AND LGPL-2.1-or-later

Bottles available for: arm64_linux, x86_64_linux

Version History

Detected	Version	Rev	Change	Commit