lsblk — list block devices
lsblk [options]
lsblk [options]
device...
lsblk lists information about all or the specified block devices. The lsblk command reads the sysfs filesystem to gather information.
The command prints all block devices (except RAM disks) in a tree-like format by default. Use lsblk --help to get a list of all available columns.
−a,
−−allList all block devices.
−b,
−−bytesPrint the SIZE column in bytes rather than in human-readable format.
−d,
−−nodepsDon't print device holders or slaves. For example "lsblk --nodeps /dev/sda" prints information about the sda device only.
−e,
−−exclude listExclude the devices specified by a comma-delimited list of major device numbers. Note that RAM disks (major=1) are excluded by default.
−f,
−−fsOutput info about filesystems. This option is equivalent to "-o NAME,FSTYPE,LABEL,MOUNTPOINT". The authoritative information about filesystems and raids is provided by the blkid(8) command.
−h,
−−helpPrint a help text and exit.
−i,
−−asciiUse ascii characters for tree formatting.
−m,
−−permsOutput info about device owner, group and mode. This option is equivalent to "-o NAME,SIZE,OWNER,GROUP,MODE".
−l,
−−listUse the list output format.
−n,
−−noheadingsDo not print a header line.
−o,
−−output listSpecify which output columns to print. Use
−−help to get a
list of all supported columns.
−r,
−−rawUse the raw output format.
−t,
−−topologyOutput info about block device topology. This option is equivalent to "-o NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-SEC,ROTA,SCHED".