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Directory and file management

An alternative method

There are two methods by which the chmod command can be executed. The method described above, in which symbols such as r, w and x are used to specify permissions, is called the symbolic method.

An alternative method is the octal method. Its format requires you to specify permissions using three octal numbers, ranging from 0 to 7. (The octal number system is different from the decimal system that we typically use on a day-to-day basis.) To learn how to use the octal method, see the chmod(1) manual page.


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