Linux 更改 /etc/profile 后，我需要做什么来重置我的 shell？
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After changing /etc/profile, what do I have to do to reset my shell?
提问by TIMEX
To test its effects immediately instead of having to reload the terminal
立即测试其效果，而不必重新加载终端
采纳答案by Serdar Dalgic
use source /etc/profile
用 source /etc/profile
for details, man source or you can checkout this link http://bash.cyberciti.biz/guide/Source_command
有关详细信息，请参考人源，或者您可以查看此链接http://bash.cyberciti.biz/guide/Source_command
回答by sjr
If this is bash you can do . /etc/profile, it's the same as doing source /etc/profile.
如果这是您可以执行的 bash . /etc/profile，则与执行source /etc/profile.
回答by Jonathan Leffler
As sjrsays, you can approximate the effect of the change by re-reading /etc/profileusing the dot .(or, in Bash, source) command.
正如sjr所说，您可以通过/etc/profile使用点.（或在 Bash 中，source）命令重新阅读来近似更改的效果。
However, you need to be aware that /etc/profilegets to work with a more minimal starting environment, so the effect you get by rereading the profile is not necessarily identical to the effect you get on login. You can simulate the original environment more accurately using the envcommand to unset the environment. With bash, you can use the -loption to make the shell behave more like a login shell - in conjunction with env, you can simulate the login environment accurately:
但是，您需要注意，/etc/profile使用更小的起始环境开始工作，因此您通过重新阅读配置文件获得的效果不一定与您在登录时获得的效果相同。您可以使用env取消设置环境的命令更准确地模拟原始环境。使用bash，您可以使用-l选项使 shell 的行为更像登录 shell - 结合env，您可以准确地模拟登录环境：
env -i HOME=$HOME PATH=/bin:/usr/bin USER=$USER ... bash -l
