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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

Buy it now, or read it online on Safari Bookshelf.



access

access [mode] [filename]

Check whether a file is available for the action specified with the mode argument: r for read, w for write, x for execute. Used mostly in scripting, access works better than test because it uses a direct system call rather than looking at the file permissions, which can be misleading when a filesystem is mounted read-only.

Options

--help

Display help message, then quit.

--version

Display version, then quit.