How to use the Linux swapoff command

Swapoff is actually a swapon symbolic connection, which can be used to close the swap zone of the system.

Syntax

Swapoff [device]

Parameters:

• -A: disable all the devices configured as swap in the/etc/fstab file.
• -H help information
• -V version information

Instance

Display partition information:

# Sfdisk-l // display partition information

Disk/dev/sda: 1305 cylinders, 255 heads, 63 sectors/track

Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0

Device Boot Start End # cyls # blocks Id System

/Dev/sda1*0 + 12 13-104391 83 Linux

/Dev/sda2 13 1304 1292 10377990 8e Linux LVM

/Dev/sda3 0-0 0 0 Empty

/Dev/sda4 0-0 0 0 Empty

Disk/dev/sdb: 652 cylinders, 255 heads, 63 sectors/track

Sfdisk: ERROR: sector 0 does not have an msdos signature

/Dev/sdb: unrecognized partition

No partitions found

Disable swap partition.

# Swapoff/dev/sda2 // disable swap partition