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Shell 脚本（shell script），是一种为 shell 编写的脚本程序。 业界所说的 shell 通常都是指 shell 脚本，但读者朋友要知道，shell 和 shell script 是两个不同的概念。 由于习惯的原因，简洁起见，本文出现的 "shell编程" 都是指 shell 脚本编程，不是指开发 shell 自身。

Feb 27, 2020 · To use multiple conditions in one if-else block, then elif keyword is used in shell. If expression1 is true then it executes statement 1 and 2, and this process continues. If none of the condition is true then it processes else part.

Sep 23, 2020 · Shell教程快速入门 Shell即是一种命令语言，又是一种程序设计语言，使用者可以通过Shell访问操作系统的内核服务。 Shell 编程和java、python、C一样，只要一个能编写代码的文本编辑器和一个能解释执行的脚本解释器就可以了， Linux 的 Shell 种类众多，我们只关注与 ...

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Mar 11, 2020 · 在shell脚本中，我们经常在if语句中看到-ge等字样，下面我们看看这都是什么意思。2、-eq，-ne等比较符只能用于数字比较，有字符也会先转换成数字然后进行比较。1、在shell中进行比较时，结果为0代表真，为1代表假。 【

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Bash, short for Bourne Again Shell, is an open-source command-line shell interpreter and scripting language. It interprets user-entered commands, either interactively or from a script file. It serves as an interface to call commands, enabling system function calls.