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.
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swapon [options] devices
System administration command. Make the listed devices available for swapping and paging.
Consult /etc/fstab for devices marked sw. Use those in place of the devices argument.
Used with -a. Don't complain about missing devices.
Print help message, then exit.
Specify a priority for the swap area. Higher priority areas will be used up before lower priority areas are used.
Print swap usage summaries, then exit.
Print version information, then exit.