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swapoff: command not found

by admin

The swapon command is used to activate a swap partition in a specified device. The swapoff command is used to deactivate the swap space on a device.

Some of the frequently used swapon and swapoff command options are given in the following table.

Option Used To
swapon -e Skip non-existent devices.
swapon -a Activate all of swap space.
swapoff -a Deactivate all of swap space.

If you encounter the below error while running the swapoff command:

swapoff: command not found

you may try installing the below package as per your choice of distribution:

OS Distribution Command
OS X brew install util-linux
Debian apt-get install mount
Ubuntu apt-get install mount
Alpine apk add util-linux
Arch Linux pacman -S util-linux
Kali Linux apt-get install mount
CentOS yum install util-linux
Fedora dnf install util-linux
Raspbian apt-get install loop-aes-utils

swapoff Command Examples

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

# swapoff -a

2. Print help message and then exit.

# swapoff -h

3. Display version number and then exit.

# swapoff -V

4. Disable swap by label of a device or file:

# swapoff -L swap1

5. Disable a given swap partition:

# swapoff /dev/sdb7

6. Disable a given swap file:

# swapoff path/to/file

Filed Under: Linux

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