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2d •
Q: If you are in a directory containing: report1.txt report2.txt And you run this command: find . -name report*.txt (No quotes!) What will the command actually run?
(Hint: Does the shell expand report*.txt into report1.txt report2.txt before find sees it?) You should always write it like this: find . -name "report*.txt" (With quotes)
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2d •
Q: What are the final permissions when using a mask like 0033?
A: If you subtract 3 (write + execute) from a base file permission of 6 (read + write), you get 4.
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2d •
Q: You are trying to mount an XFS partition, but the kernel reports "structure needs cleaning." You want to check for errors without making any changes. Which command do you use?
A: xfs_repair -n /dev/sdXY (The -n is the key for "no changes").
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2d •
Q: What are the main targets for a distro with systemd (and what were their run levels)?
A: emergency.target, rescue.target(1),multi-user.target(3), graphical.target(5), reboot.target(6) More information in https://unixtips.eu/booting-the-system
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