| 1. | The chmod numerical format accepts up to four octal digits.
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| 2. | Codes are usually described as three octal digits, ( for example, 054 ).
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| 3. | When converting from binary to octal every 3 bits relate to one and only one octal digit.
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| 4. | An octal escape sequence consists of \ followed by one, two, or three octal digits.
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| 5. | The inverse mapping should also be a FSA, now taking an octal digit and producing a triple of bits.
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| 6. | This representation offers no way to easily read the most significant byte, because it's smeared over four octal digits.
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| 7. | The three rightmost octal digits address the'owner','group'and'other'user classes, respectively.
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| 8. | The octal escape sequence ends when it either contains three octal digits already, or the next character is not an octal digit.
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| 9. | The octal escape sequence ends when it either contains three octal digits already, or the next character is not an octal digit.
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| 10. | A similar relationship holds between every octal digit and every possible sequence of three binary digits, since eight is the cube of two.
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