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Discussion on: 9 Evil Bash Commands Explained

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Andreas Author

Yes same here. That was one of the reasons to write this post. However I read that some of these depend on the Linux distribution, but I wouldn't count on that. I was really surprised to see, that chmod and chown both have a --preserve-root and --no-preserve-root flag to prevent misuse, but the default argument is --no-preserve-root! So if you run a command without a "preserve" option, it will default to "no preserve" mode and hence change permissions on a lot of files that shouldn't be changed.