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Level 1

8 points

I ran sudo chmod go-w /usr on my Mac - is this an issue?

So as the title suggested while troubleshooting a warning message, I mistakenly ran the following command in my Mac Terminal:

sudo chmod go-w /usr

Is this likely to cause me any problems and if so, can I undo it?

I also ran this to try and solve my original issue (which was on the wrong track altogether):

chmod 766 /usr/local

However this said it didn't have permission to run so hopefully that was harmless.

I will be much more careful with such commands in the future!

iMac with Retina 5K display, macOS 10.15

Posted on May 31, 2020 6:21 AM

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Level 10

112,752 points

Posted on May 31, 2020 9:54 AM

The mode for /user should be 755.

Just do the same thing as you did for /usr/local, but use 755 and /usr

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