1 / 5
What do the letters rwx stand for?
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The permission bits read, write, and execute apply to the owner, group, and others.
2 / 5
What does chmod 755 grant?
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In octal, 755 means owner rwx (7), group r-x (5), others r-x (5).
3 / 5
What does the chown command change?
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chown changes the owner, and optionally the group, of files and directories, e.g. chown user:group file.
4 / 5
What does the setuid bit do on an executable?
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The setuid bit makes an executable run with the privileges of its owner rather than the user launching it.
5 / 5
What does umask determine?
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The umask defines which permission bits are cleared from the default when new files and directories are created.