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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.


rup [options] [hosts]

TCP/IP command. Query statd for system status on RPC hosts: current time, uptime, and load averages (the average number of jobs in the run queue).



Report local time on each host.


Sort information by hostname.


Sort information by load average.


Print times in seconds. Useful for scripts.


Sort information by uptime.

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