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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.



uptime

uptime [option]

Print the current time, how long the system has been running, the number of users currently logged in (which may include the same user multiple times), and system load averages. This output is also produced by the first line of the w command.

Option

-V

Print version information and exit.