如何在Script中将目录更改为主目录？ （重击）[重复]

This question already has an answer here:

这个问题在这里已有答案:

• Why doesn't “cd” work in a shell script? 29 answers

为什么“cd”不能在shell脚本中工作? 29个答案

Hi this is my first time writing bash and I'm trying to practice creating a bash script and am attempting to do the following:

嗨,这是我第一次写bash,我正在尝试创建一个bash脚本,并尝试执行以下操作:

• Using absolute path the script changes directory to your home directory.

使用绝对路径,脚本将目录更改为您的主目录。

• Next it verifies whether a subdirectory called project exists. If it does not exist it creates that directory.

接下来,它验证是否存在名为project的子目录。如果它不存在,则创建该目录。

• Next it changes directory moving into the project subdirectory using relative path.

接下来,它使用相对路径更改目录移动到项目子目录中。

I'm already stuck on the first step:

我已经陷入了第一步:

#!/bin/bash
cd
if [ -d ./project ]
    then 
        echo hi it exists!
    else
        echo it doesn't exist!
cd project/

I would appreciate if someone could help! thank you so much!

如果有人可以帮忙,我将不胜感激!非常感谢!

2 个解决方案

#1

You can use the $HOME environment variable. Bash also recognizes a tilde (~) as home.

您可以使用$ HOME环境变量。 Bash还将波浪号(〜)识别为家。

#2

cd by itself changes the current working directory to the home directory. See man cd for other uses of this command.

cd本身将当前工作目录更改为主目录。有关此命令的其他用法,请参阅man cd。