coreutils: File permissions

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1 27 File permissions
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1 Each file has a set of “file mode bits” that control the kinds of access
1 that users have to that file.  They can be represented either in
1 symbolic form or as an octal number.
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Menu

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· Mode Structure              Structure of file mode bits.
· Symbolic Modes              Mnemonic representation of file mode bits.
· Numeric Modes               File mode bits as octal numbers.
· Operator Numeric Modes      ANDing, ORing, and setting modes octally.
· Directory Setuid and Setgid Set-user-ID and set-group-ID on directories.
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