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Ubuntu Unleashed 2014 Edition: Covering 13.10 and 14.04,Ninth Edition by Paul Hudson, Andrew Hudson, Matthew Helmke

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Assigning Permissions

Under Linux, permissions are grouped by owner, group, and others, with read, write, and execute permission assigned to each, as follows:

Owner    Group    Othersrwx      rwx      rxw

Permissions can be indicated by mnemonic or octal characters. Mnemonic characters are listed here:

Image r indicates permission for an owner, member of the owner’s group, or others to open and read the file.

Image w indicates permission for an owner, member of the owner’s group, or others to open and write to the file.

x indicates ...

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