this post was submitted on 22 Sep 2025
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I've recently learned that in Linux, you can use emois in filenames. I died a ~~little~~ lot inside when I learned that.
On Linux file systems you can use any character except NULL, and / is a reserved character.
E.g. on ext-4 "All characters and character sequences permitted, except for NULL ('\0'), '/', and the special file names "." and ".." which are reserved for indicating (respectively) current and parent directories."
I once accidentally created a file with a newline character in it... it was pretty tricky to fix from command line.
I created a file with backspace in name, it was hard to understand why filename doesn't match