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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.


swapoff [options] [devicelist]

System administration command. Stop making devices and files specified in devicelist available for swapping and paging.



Consult /etc/fstab for devices marked sw. Use those in place of the device argument.


Print help message and then exit.


Display version number and then exit.

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