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wiki/concepts/Shell.md
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wiki/concepts/Shell.md
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title: "Shell"
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type: concept
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tags: [linux, shell]
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sources: ["raw/Home Office/Linux 运维必会的 150 个命令.md"]
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last_updated: 2026-04-16
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---
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## Definition
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Shell(命令解释器)是 Linux 系统的用户界面,负责解释和执行用户输入的命令。它作为用户与内核之间的桥梁,将用户的命令转换为系统调用。
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## Common Types
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- **Bash**:最常用的 Shell,Linux 默认
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- **Zsh**:功能强大的增强版 Shell
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- **Fish**:用户友好的交互式 Shell
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## Related Commands
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- help:查看内置命令帮助
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- type:判断命令是否为内置命令
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- alias:设置命令别名
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- unalias:取消命令别名
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