A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
-bash/zsh: swapoff command not found #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 #OS X brew install util-linux #Raspbian apt-get install loop-aes-utils #Docker docker run cmd.cat/swapoff swapoff
swapoff 禁用设备或文件进行交换。
swapoff [-va] [specialfile...]
-a, --all
All devices marked as ``swap'' in /etc/fstab are made
available, except for those with the ``noauto'' option.
Devices that are already being used as swap are silently
skipped.
-d, --discard[=policy]
Enable swap discards, if the swap backing device supports
the discard or trim operation. This may improve
performance on some Solid State Devices, but often it does
not. The option allows one to select between two
available swap discard policies: --discard=once to perform
a single-time discard operation for the whole swap area at
swapon; or --discard=pages to asynchronously discard freed
swap pages before they are available for reuse. If no
policy is selected, the default behavior is to enable both
discard types. The /etc/fstab mount options discard,
discard=once, or discard=pages may also be used to enable
discard flags.
-e, --ifexists
Silently skip devices that do not exist. The /etc/fstab
mount option nofail may also be used to skip non-existing
device.
-f, --fixpgsz
Reinitialize (exec mkswap) the swap space if its page size
does not match that of the current running kernel.
mkswap(8) initializes the whole device and does not check
for bad blocks.
-h, --help
Display help text and exit.
-L label
Use the partition that has the specified label. (For
this, access to /proc/partitions is needed.)
-o, --options opts
Specify swap options by an fstab-compatible comma-
separated string. For example:
swapon -o pri=1,discard=pages,nofail /dev/sda2
The opts string is evaluated last and overrides all other
command line options.
-p, --priority priority
Specify the priority of the swap device. priority is a
value between -1 and 32767. Higher numbers indicate
higher priority. See swapon(2) for a full description of
swap priorities. Add pri=value to the option field of
/etc/fstab for use with swapon -a. When no priority is
defined, it defaults to -1.
-s, --summary
Display swap usage summary by device. Equivalent to "cat
/proc/swaps". This output format is DEPRECATED in favour
of --show that provides better control on output data.
--show[=column...]
Display a definable table of swap areas. See the --help
output for a list of available columns.
--output-all
Output all available columns.
--noheadings
Do not print headings when displaying --show output.
--raw Display --show output without aligning table columns.
--bytes
Display swap size in bytes in --show output instead of in
user-friendly units.
-U uuid
Use the partition that has the specified uuid.
-v, --verbose
Be verbose.
-V, --version
Display version information and exit.
swapoff 禁用给定的交换分区：
swapoff /dev/sdb7
swapoff 禁用给定的交换文件：
swapoff path/to/file
swapoff 禁用所有交换区域：
swapoff -a
swapoff 禁用按设备或文件的标签进行交换：
swapoff -L swap1