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I've been looking on the Internet for an answer and haven't found a concrete one. If I want to change the runlevel it is okay to use just init or do I always have to call it through telinit.

I've read that telinit is in fact a symlink to init. If this is correct, can I use them interchangeably?

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up vote 1 down vote accepted

The manual page telinit(8) answers your question: use telinit.

telinit may be used to change the system runlevel.

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It should be fine to change the runlevel with either one. As init is supposed to check if it is the real init process. Or just a telinit, by checking if it's pid is one, not by the name of the file.

So yes, you should be able to use them interchangeably.

However, I cannot guarantee there are no non-conforming systems, where this will not work out. It is best to check yourself if it works as intended on your install.

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