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| Options:
-a, --all 显示所有设备
-b, --bytes 指定SIZE字段以bytes为单位显示,而不是可读形式如1G
-d, --nodeps 只显示磁盘而不显示分区
-D, --discard print discard capabilities
-e, --exclude <list> 排除MAJ主设备编号的磁盘,可以在多种磁盘类型时使用
-I, --include <list> 只显示指定的主设备编号磁盘
-f, --fs 显示文件系统
-i, --ascii 只使用ascii字符
-m, --perms 显示权限
-l, --list 显示为列表形式
-n, --noheadings 不显示头部标题
-o, --output <list> 显示指定格式
-p, --paths 显示完整的设备路径
-P, --pairs 显示key="value"格式
-r, --raw 显示原始格式
-s, --inverse 显示依赖关系
-t, --topology 显示设备详情
-S, --scsi 显示SCSI设备
-o可选的字段列表如下
NAME device name
KNAME internal kernel device name
MAJ:MIN major:minor device number
FSTYPE filesystem type
MOUNTPOINT where the device is mounted
LABEL filesystem LABEL
UUID filesystem UUID
PARTLABEL partition LABEL
PARTUUID partition UUID
RA read-ahead of the device
RO read-only device
RM removable device
MODEL device identifier
SERIAL disk serial number
SIZE size of the device
STATE state of the device
OWNER user name
GROUP group name
MODE device node permissions
ALIGNMENT alignment offset
MIN-IO minimum I/O size
OPT-IO optimal I/O size
PHY-SEC physical sector size
LOG-SEC logical sector size
ROTA rotational device
SCHED I/O scheduler name
RQ-SIZE request queue size
TYPE device type
DISC-ALN discard alignment offset
DISC-GRAN discard granularity
DISC-MAX discard max bytes
DISC-ZERO discard zeroes data
WSAME write same max bytes
WWN unique storage identifier
RAND adds randomness
PKNAME internal parent kernel device name
HCTL Host:Channel:Target:Lun for SCSI
TRAN device transport type
REV device revision
VENDOR device vendor
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