Linux swapoff command

Linux 命令大全Linux Commands

The Linux swapoff command is used to disable the system swap area.

swapoff is actually a symbolic link to swapon, and can be used to disable the system swap area.

Syntax

swapoff [设备]

Parameters:

  • -a Disable all devices set as swap in the /etc/fstab file
  • -h Help information
  • -V Version information

Examples

Display partition information:

# sfdisk -l //显示分区信息

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 the swap partition.

# swapoff /dev/sda2 // 关闭交换分区

Linux 命令大全Linux Commands

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