adding_and_removing_permissions_shorthand
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Adding and Removing Permissions Shorthand
Shorthand yes, but long brain!
To understand how this shorthand method works we first need a little background in number systems. Our typical number system is decimal. It is a base 10 number system and as such has 10 symbols (0 - 9) used. Another number system is octal which is base 8 (0-7). Now it just so happens that with 3 permissions and each being on or off, we have 8 possible combinations (2^3). Now we can also represent our numbers using binary which only has 2 symbols (0 and 1). The mapping of octal to binary is in the table below.
Octal Binary 0 000 1 001 2 010 3 011 4 100 5 101 6 110 7 111
adding_and_removing_permissions_shorthand.1469472819.txt.gz · Last modified: 2023/03/09 22:35 (external edit)