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Environment & Package Manager

x-env 是 x-cmd 的环境与包管理模块，通过 x env 系列命令列出可用版本与已安装包、临时试用（try）或永久安装（use）运行时的指定版本、升级与清理软件包，并查询命令路径和依赖。需先安装并加载 x-cmd，适用于 POSIX Shell。

lunrenyi
lunrenyi
热度 61.80
最近更新 2026-05-17 14:20:24
分类：开发依赖：代码执行应用场景：DevOps / 工作流

安装技能

复制下面的话术发给你的 Agent，它会通过 secure-skills 检索并安装该技能。

执行命令安装此 skill： npx secure-skills-cli add x-env
Metadata
name
x-env
description
x-env is x-cmd's environment and package management module for installing and managing third-party software, programming language runtimes, and command-line tools. Use this skill when: installing or managing runtimes (node, python, go, bun, java, rust); installing CLI tools (jq, yq, fzf, himalaya, claude-code); managing multiple software versions (specify versions, switch versions); cleaning up unused packages; viewing installed software paths or dependencies; asking how to install software; temporarily using software in current shell session (try); permanently installing software to user environment (use); upgrading installed software versions; running scripts with specific software versions. This is the core package manager in x-cmd ecosystem.
license
Apache-2.0
compatibility
POSIX Shell (sh/bash/zsh/dash/ash)
metadata
{"author":"X-CMD","version":"1.0.0","category":"core","tags":["shell","cli","tools","package-manager","env","runtime"],"repository":"https://github.com/x-bash/env","install_doc":"data/install.md","display_name":"Environment & Package Manager"}

x env - Environment & Package Manager

Prerequisites

  1. Load x-cmd before use:

    . ~/.x-cmd.root/X

  2. x-cmd not installed? → data/install.md

Core Concepts

  • try: Temporarily use software in current shell session (only valid for current terminal)
  • use: Permanently install software to user environment (persists after terminal restart)
  • untry: Cancel temporarily tried software in current session
  • unuse: Remove installed software from user environment
  • upgrade: Upgrade installed software versions

Core Functions

  • List available versions: x env la <pkg>
  • List installed packages: x env ls, x env ll
  • Temporary use (try): x env try <pkg>[=<version>]
  • Permanent install (use): x env use <pkg>[=<version>]
  • Remove package: x env unuse <pkg>
  • Upgrade package: x env upgrade <pkg>
  • Cleanup packages: x env gc <pkg>
  • Find command path: x env which <cmd>
  • Check dependencies: x env depend <pkg>

Usage Examples

Install packages

x env use node              # Install default version of node
x env use python            # Install default version of python
x env use go=v1.21.0        # Install specific version
x env use node python go    # Install multiple packages

Temporary use (current shell session only)

x env try node              # Use default node in current session
x env try bun go=v1.17.13   # Use multiple packages with versions
x env untry node            # Cancel temporary use

Version management

x env use --upgrade --all   # Upgrade all installed packages
x env use --upgrade jq yq   # Upgrade specific packages
x env upgrade node python   # Upgrade packages (shorthand)

List and search

x env la node               # List all available node versions
x env ls                    # List packages in use
x env ll                    # List all installed packages
x env which node            # Show node installation path

Cleanup

x env gc jq yq              # Remove specified packages and orphans

Common Scenarios

  • Install node: x env use node
  • Install python: x env use python
  • Install go: x env use go
  • Install jq: x env use jq
  • Install specific version: x env use node=v18.12.0
  • Temporary try: x env try node
  • Upgrade all: x env upgrade --all
  • Find path: x env which node

Get Help

Run x env --help for full help documentation.