Linux shell入门的相关内容

[帮助文档] Linux系统的Shell命令如何查看实例的系统配置

通过云助手，您无需逐一登录ECS实例进行运维操作，只需编写可以查询系统配置的云助手命令，并根据系统返回信息做出应对机制，例如是否继续下载或者更新软件。本文以适用于Linux系统的Shell命令为例，介绍如何查看实例的系统配置。

【Linux】之shell入门

shell入门代码规范#!/bin/bash(指定告知系统当前这个脚本要使用的shell解释器) Shell相关指令文件命名规范文件名.sh(.sh是linux下bash shell的默认后缀)使用流程1.创建.sh文件2.编写shell代码3.执行shell脚本（脚本必须得有执行权限）touch ...

Linux Shell 编程

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Linux Shell从入门到删除根目录跑路指南

1、变量为空导致误删文件base_path=/usr/sbin tmp_file=`cmd_invalid` # rm -rf $base_path/$tmp_file这种情况下如果 cmd 执行出错或者返回为空，后果将是灾难性的，那如何防范呢？（1）利用 shell 的变量扩展功能&#x...

Linux Shell 从入门到删除根目录跑路指南

shell作为一门 linux 下使用广泛的系统语言，语法简单，上手容易，但是想要用好，少犯错误，也不是那么容易的一件事，可谓虽是居家旅行之良药，但也是杀人灭口之利器~ 今天就来聊聊 linux 下一个常见的问题：如何避免误删目录。下文会详细的讲述不同的场景下误删目录，以及相应的解决方案。 1、变量...

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