# 使用 Homebrew, apk, dnf, Nix, pacman, zypper 安装 libcap
查看 libcap 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。
## 安装
```sh
sudo av install brew:libcap
```
其他安装命令:
### macOS
- Homebrew (100%):
```sh
brew install libcap
```
证据: local Homebrew formula metadata
### Linux
- apk (92%):
```sh
sudo apk add libcap
```
证据: Alpine Linux edge package indexes: libcap from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
- dnf (92%):
```sh
sudo dnf install libcap
```
证据: Fedora Rawhide package metadata: libcap from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst
- Nix (92%):
```sh
nix profile install nixpkgs#libcap
```
证据: nixpkgs package indexes: pkgs/by-name/li/libcap/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- pacman (92%):
```sh
sudo pacman -S libcap
```
证据: Arch Linux sync databases: libcap from https://geo.mirror.pkgbuild.com/core/os/x86_64/core.db.tar.gz
- zypper (92%):
```sh
sudo zypper install libcap-devel
```
证据: openSUSE Tumbleweed package metadata: libcap-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst
## 软件包事实
- **软件包键:** brew:libcap
- **软件包管理器:** Homebrew
- **版本:** 2.78
- **来源摘要:** User-space interfaces to POSIX 1003.1e capabilities
- **主页:**
- **已生成:** 2026-08-03T19:37:03+00:00
## 可执行文件
- capsh (别名)
- getcap (别名)
- getpcaps (别名)
- setcap (别名)
## 安装行为
- Bottle: 不可用
## 版本和新鲜度
- 页面生成时间: 2026-08-03
- 管理器版本: 2.78
## 项目历史与用法
libcap is Andrew G. Morgan's user-space library and utility suite for Linux capabilities, including setcap, getcap, getpcaps, capsh, pam_cap, and related support libraries.
### 项目历史
The upstream README describes libcap as a library for getting and setting POSIX.1e draft 15 capabilities, with native C/C++ and Go support. The Fully Capable site frames Linux capabilities as an alternative to the superuser model of privilege under Linux and notes that the Linux implementation is based on the defunct POSIX.1e draft.
The project grew beyond a C library into a family of privilege-management tools and helper code. The README names capsh, getpcaps, setcap, and getcap as example programs, while the Fully Capable site documents libpsx for POSIX semantics in threaded applications and Go packages for capability manipulation.
### 采用历史
libcap became baseline Linux security infrastructure because file capabilities and process capabilities need user-space tooling. Distribution packages expose its command-line tools for administrators and its headers and library for software that must drop root while keeping only specific privileges.
### 使用方式
Administrators use setcap and getcap to assign and inspect file capabilities, getpcaps to inspect processes, and capsh to experiment with capability sets and shells. Developers link libcap when applications need direct control over Linux capability state.
### 为什么软件包爱好者会关心
libcap is one of the packages that turns a kernel security feature into everyday packaging policy. Without it, downstream maintainers have a harder time replacing setuid-root patterns with smaller capability grants.
### 时间线
- POSIX.1e draft 15: Upstream README identifies this draft as the capabilities model libcap targets.
- 2024-05-18: kernel.org refs list libcap 2.70 tags.
- 2024-10-25: kernel.org refs list libcap 2.71 tags.
- 2025-03-04: kernel.org refs list libcap 2.75 tags.
- 2026-04-05: kernel.org refs list libcap 2.78 tags.
### Related projects
- Related projects include the Linux kernel capability implementation, libcap-ng, libpsx, pam_cap, Go cap and psx packages, and distribution packaging that replaces setuid-root usage with file capabilities.
### 来源
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## 安全说明
library-like package without higher-risk signals.
- **Geiger 风险:** 绿色 / 低
- library-like package without higher-risk signals
## 其他软件包管理器记录
- Nix - libcap: normalized package name match | nixpkgs package indexes: pkgs/by-name/li/libcap/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1
- apk - libcap - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities | https://sites.google.com/site/fullycapable/
- apk - libcap-dev - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-dev from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (development files) | https://sites.google.com/site/fullycapable/
- apk - libcap-doc - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-doc from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (documentation) | https://sites.google.com/site/fullycapable/
- apk - libcap-getcap - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-getcap from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (getcap utility) | https://sites.google.com/site/fullycapable/
- apk - libcap-setcap - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-setcap from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (setcap utility) | https://sites.google.com/site/fullycapable/
- apk - libcap-static - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-static from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (static library) | https://sites.google.com/site/fullycapable/
- apk - libcap-utils - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap-utils from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (extra utils) | https://sites.google.com/site/fullycapable/
- apk - libcap2 - 2.78-r0: normalized package name match | Alpine Linux edge package indexes: libcap2 from https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz | POSIX 1003.1e capabilities (libraries) | https://sites.google.com/site/fullycapable/
- dnf - captree - 2.78-2.fc45: normalized package name match | Fedora Rawhide package metadata: captree from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Capability inspection utility | https://sites.google.com/site/fullycapable/
- dnf - libcap - 2.78-2.fc45: normalized package name match | Fedora Rawhide package metadata: libcap from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Library for getting and setting POSIX.1e capabilities | https://sites.google.com/site/fullycapable/
- dnf - libcap-devel - 2.78-2.fc45: normalized package name match | Fedora Rawhide package metadata: libcap-devel from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Development files for libcap | https://sites.google.com/site/fullycapable/
- dnf - libcap-static - 2.78-2.fc45: normalized package name match | Fedora Rawhide package metadata: libcap-static from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/07190dc5ae9f35ae73866675fed6d95fe6e8d9fe22c9d7cdf85862cb2ed24a4c-primary.xml.zst | Static libraries for libcap development | https://sites.google.com/site/fullycapable/
- pacman - libcap - 2.78-1: normalized package name match | Arch Linux sync databases: libcap from https://geo.mirror.pkgbuild.com/core/os/x86_64/core.db.tar.gz | POSIX 1003.1e capabilities | https://sites.google.com/site/fullycapable/
- zypper - libcap-devel - 2.78-1.4: normalized package name match | openSUSE Tumbleweed package metadata: libcap-devel from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Development files for libcap | https://sites.google.com/site/fullycapable/
- zypper - libcap-progs - 2.78-1.4: normalized package name match | openSUSE Tumbleweed package metadata: libcap-progs from https://download.opensuse.org/tumbleweed/repo/oss/repodata/50b07339cb64c8ed4091bdbabddadc1ff5737b090e478818a195b40d8a3292861a879139b4a3987c31109699fde9fbf4a716367ddf4eef77da75f96e3193d6ed-primary.xml.zst | Libcap utility programs | https://sites.google.com/site/fullycapable/
## Combined YAML source
View the package source record on GitHub. [combined/libcap.yml](https://github.com/mxcl/pkgdb/blob/main/combined/libcap.yml)
## 来源
- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph