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    Sunday, January 26, 2014

    Interview Questions on Linux Permissions with Answers

    1.What is the difference between SUID and SGID?

    2. What is Sticky Bit permission?

    3. What is umask?

    4. What is the default umask value for useradd command and where is it defined?

    5. Will you be able to cd into a directory with only read permission?

    6. What is -R argument used for along with chmod command?

    7. How can you restrict a normal as well as root user from making any changes as well as deleting any file?

    8. What is the + plus sign you see at the end of permissions for some directories?

    9. How do you give acl in Linux?

    10. What is the difference between small t and capital T when applying sticky bit permission?


    1. Great information. Thanks for providing us such a useful information. Keep up the good work and continue providing us more quality information from time to time. Interview Preparation

    2. Very very helpful information for all linux guys.. Thanks a lot and keep posted.

    3. Thankx guys,
      very help full information