# Install zzz with Homebrew, apk, Nix Command-line tool to put Macs to sleep. Version 1 via Homebrew; verified 2026-07-10. Also installable with nix: nix profile install nixpkgs#zzz. ## Install ```sh sudo av install brew:zzz ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install zzz ``` Evidence: local Homebrew formula metadata ### Linux - apk (92%): ```sh sudo apk add zzz ``` Evidence: Alpine Linux edge package indexes: zzz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz - Nix (92%): ```sh nix profile install nixpkgs#zzz ``` Evidence: nixpkgs package indexes: pkgs/by-name/zz/zzz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 ## Package facts - **Package key:** brew:zzz - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1 - **Source summary:** Command-line tool to put Macs to sleep - **Homepage:** - **Repository:** - **License:** LicenseRef-Homebrew-public-domain - **Source archive:** - **Last updated:** 2026-07-10T09:37:19-04:00 - **Generated:** 2026-08-04T22:13:35+00:00 ## Executables - Zzz (cli) - Zzz (alias) ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, catalina, monterey, sonoma, ventura ## Freshness - Page generated: 2026-08-04 - Package-manager version: 1 - Package-manager updated: 2026-07-10 - Local data: ok - Upstream repository: https://github.com/Orc/Zzz - info: No cached GitHub release or tag data was available. ## Project history and usage Zzz is a small macOS command-line program that asks the operating system's power-management service to put the machine to sleep immediately. ### Project history The project's manual page is dated 11 August 2011 and describes a single-purpose system utility authored by David Parsons. The upstream C source remains intentionally small: it locates the IOKit power-management service, calls `IOPMSleepSystem`, reports errors, and exits. ### Adoption history The official README documents both traditional make-based installation into `/usr/local/bin` and Homebrew installation. This positions Zzz as a compact packaged convenience for shell users rather than a larger application or daemon. ### How it is used Run `Zzz` with no arguments to request immediate sleep. The manual documents a zero exit status on success and a nonzero status on failure; no root access is required. ### Why package nerds care Zzz is a characteristic micro-utility: a stable, memorable command packages a platform API call that would otherwise require custom C code or a less discoverable system workflow. Its makefile, manual page, C source, and Homebrew path exemplify the durable Unix packaging of tiny native tools. ### Timeline - 2011-08-11: The Zzz manual page documents the macOS sleep command. - Later upstream README: Traditional make installation and Homebrew installation are documented side by side. ### Related projects - The README compares Zzz with SleepNow, while its implementation directly uses Apple's IOKit power-management interfaces. ### Sources - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** zzz - **Version Scheme:** 0 - **Revision:** 0 - **Head Version:** HEAD - **Requirements:** macos - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Nix - zzz: normalized package name match | nixpkgs package indexes: pkgs/by-name/zz/zzz/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - apk - zzz - 0.2.0-r0: normalized package name match | Alpine Linux edge package indexes: zzz from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Suspend or hibernate your computer | https://github.com/jirutka/zzz - apk - zzz-doc - 0.2.0-r0: normalized package name match | Alpine Linux edge package indexes: zzz-doc from https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz | Suspend or hibernate your computer (documentation) | https://github.com/jirutka/zzz ## Related links - [Source-control packages](https://pkg.so/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://pkg.so/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://pkg.so/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Homebrew utility packages](https://pkg.so/brew-utility-packages/) - Matched Homebrew package provider. - [powerman](https://pkg.so/brew/powerman/) - Shares pkgdb curated category or tags: cli, power-management, system. - [apcupsd](https://pkg.so/brew/apcupsd/) - Shares pkgdb curated category or tags: cli, power-management, system. - [sleepwatcher](https://pkg.so/brew/sleepwatcher/) - Shares pkgdb curated category or tags: cli, macos, sleep, system. - [nut](https://pkg.so/brew/nut/) - Shares pkgdb curated category or tags: cli, power-management, system. - [libzip](https://pkg.so/brew/libzip/) - Shares pkgdb curated category or tags: c, cli, system. - [fastfetch](https://pkg.so/brew/fastfetch/) - Shares pkgdb curated category or tags: c, cli, system. - [mole](https://pkg.so/brew/mole/) - Shares pkgdb curated category or tags: cli, macos, system. - [lima](https://pkg.so/brew/lima/) - Shares pkgdb curated category or tags: cli, macos, system. - [mas](https://pkg.so/brew/mas/) - Local package facts share a topical domain. Shared terms: cli, command-line, line, macos, management. - [mist-cli](https://pkg.so/brew/mist-cli/) - Local package facts share a topical domain. Shared terms: cli, command-line, line, macos, management. ## Combined YAML source View the package source record on GitHub. [combined/zzz.yml](https://github.com/mxcl/pkgdb/blob/main/combined/zzz.yml) ## Sources - pkg.so package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - pkgdb category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph