user111537: I started bitcoin-qt with --reindex and pruning on.
Can I safely shutdown and restart?
If yes how? Do I have to pass --reindex again or will bitcoin-qt remember and continue from where it stopped?

user48884: 
Can I safely shutdown and restart?

Yes.

If yes how? Do I have to pass --reindex again or will bitcoin-qt remember and continue from where it stopped?

No, Bitcoin Core will remember that it was reindexing and continue the reindex.

111537: <p>I started <code>bitcoin-qt</code> with <code>--reindex</code> and pruning on.</p>
<p>Can I safely shutdown and restart?</p>
<p>If yes how? Do I have to pass <code>--reindex</code> again or will <code>bitcoin-qt</code> remember and continue from where it stopped?</p>
 48884: <blockquote>
<p>Can I safely shutdown and restart?</p>
</blockquote>
<p>Yes.</p>
<blockquote>
<p>If yes how? Do I have to pass <code>--reindex</code> again or will <code>bitcoin-qt</code> remember and continue from where it stopped?</p>
</blockquote>
<p>No, Bitcoin Core will remember that it was reindexing and continue the reindex.</p>
