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I posted an answer to this question.

Linux: Run command on a batch of files, with matching output files

  1. I am allowed to make comments to my post, but not to other peoples posts?
  2. How do I put a linebreak in a comment? When I press enter, the comment get submitted.

Linebreaks End a line with two spaces to add a
linebreak:

https://superuser.com/editing-help#comment-formatting

I'm running Firefox 24 on Fedora 19 lxde.

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1) You do not yet have the privilege to comment everywhere, which is earned at 50 rep.

At the moment I write this, you only have 41 reputation on Super User.

Until you reach that privilege, you can only comment on your own answers or within your own questions - though that normally does not take a very long wait.

2) You don't put newlines in comments - they're single-line only.

If you have anything substantial enough to warrant multiple lines in a comment, you may be misusing comments. They exist primarily to request improvement or clarification in an answer, and they're transient - you should expect they could be deleted after a few days for clean-up purposes.

If you're writing information in comments that should probably be part of your answer, edit that information into your answer.

That said, if you really need to put something multiline in a comment, you could put it on Pastebin instead and link to it.

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    If only they were, in fact, cleaned up after a few days.
    – Rosinante
    Commented Oct 21, 2013 at 0:52
  • I read this as I can have multi-line comments. superuser.com/editing-help#comment-formatting
    – historystamp
    Commented Oct 21, 2013 at 1:00
  • @historystamp I see why you might think that - the code sample is multiline - but newlines are ignored in comments. If you somehow submit a comment with newlines in it, they'll be stripped out.
    – doppelgreener
    Commented Oct 21, 2013 at 1:04

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