ubuntu select /bin/bash or /bin/dash

最新推荐文章于 2024-10-12 15:17:45 发布

转载最新推荐文章于 2024-10-12 15:17:45 发布 · 606 阅读

本文详细介绍了如何在Ubuntu系统中通过更新替代机制将默认的/bin/sh链接更改为指向bash，包括使用`update-alternatives`命令进行配置。

/bin/sh needs to point to bash and by default Ubuntu points sh at dash. You can make the change either by brute-force (i.e. just change the link for /bin/sh) or use the 'update-alternatives' mechanism in ubuntu:

sudo update-alternatives --install /bin/sh sh /bin/dash 1
sudo update-alternatives --install /bin/sh sh /bin/bash 1

sudo update-alternatives --config sh

Select the entry for /bin/bash and to make sure, try '/bin/sh --version'.

If sh is pointing at bash, you'll get a version message (GNU bash, version 4.1.5... ), if it's pointing at dash, you'll get a message like: /bin/sh: Illegal option --