swapoff --version (return code: 0)
swapoff from util-linux 2.27.1
swapoff --help (return code: 0)
Usage:
swapoff [options] [<spec>]
Disable devices and files for paging and swapping.
Options:
-a, --all disable all swaps from /proc/swaps
-v, --verbose verbose mode
-h, --help display this help and exit
-V, --version output version information and exit
The <spec> parameter:
-L <label> LABEL of device to be used
-U <uuid> UUID of device to be used
LABEL=<label> LABEL of device to be used
UUID=<uuid> UUID of device to be used
<device> name of device to be used
<file> name of file to be used
For more details see swapoff(8).