The Octal Notation Of Access Permissions (Cont.)

• Each digit is made of 3 binary bits, representing 3 permissions, 'r', 'w' and 'x'.
• Each digit represents 3 permissions, 'r', 'w' and 'x'.
• Thus, '1' represents 'x', '2' represents 'w', and '4' represents 'r'.
• The following table shows the translation of values to permissions:

  Value	'r'	'w'	'x'
  0	-	-	-
  1	-	-	+
  2	-	+	-
  3	-	+	+
  4	+	-	-
  5	+	-	+
  6	+	+	-
  7	+	+	+

Originally written by guy keren