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I type the umask command in linux shell and it returns 002 as output. I know what for umask command used. But what 002 represents. please help me

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  • 0x2 is write. Hence, files will not be writable by others by default.
    – knittl
    Commented Oct 14, 2013 at 6:00

2 Answers 2

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It shows the default permission levels by which a file will be created.
Subtracting umask from base permission would give you actual file permissions.
All the files will be created with 664 (666-002) permissions and dir with 775 (777-002) permissions.

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  • imean which bit represents what?
    – Sri Harsha
    Commented Oct 14, 2013 at 6:03
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    The order is rwx (read-write-execute), and the bitmask is defined as r=4, w=2, x=1, so 002 equals w only.
    – Frank Schmitt
    Commented Oct 14, 2013 at 7:35
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It means that files created will not be world-writable by default.

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