bash - 脚本可以更改运行脚本的 bash 的 cwd 吗？

Question

这是场景，我打开一个终端，bash'scwd是 `/home/me'，像这样：

[/home/me $] ls
a.sh

现在我a.sh在 cwd 中是这样的：

[/home/me $] ./a.sh

我想要的是，我想通过运行来改变bash's ，这意味着完成后，'s不会是，cwda.sha.shbashcwd/home/me

[/home/other_dir $]

我可以这样做吗？如果是，如何？

Answer 1

You can use source command which runs in the current shell's context. So all the change done in the script will be visible in the your shell.

For example:

If the content of a.sh is: cd /usr/bin

then executing the following will result in change in CWD

$ source a.sh

Answer 2

For that you need to run a.sh without forking a subshell like this:

. ./a.sh

This will make sure to run your script in current shell itself and and change dir command inside your script will be reflected in current shell.