---
title: "bash中的参数扩展"
date: 2021-01-03T23:59:11+08:00
tags: []
categories: []
weight: 50
show_comments: true
draft: false
---

[https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html](https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html)