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LSBLK(8)							      LSBLK(8)

NAME
       lsblk - list block devices

SYNOPSIS
       lsblk [options]

       lsblk [options] device...

DESCRIPTION
       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.

OPTIONS
       -a, --all
	      List all block devices.

       -b, --bytes
	      Print the SIZE column in bytes  rather  than  in	human-readable
	      format.

       -d, --nodeps
	      Don't  print  device  holders  or	 slaves.   For	example "lsblk
	      --nodeps /dev/sda" prints information about the sda device only.

       -e, --exclude list
	      Exclude the devices specified by a comma-delimited list of major
	      device  numbers.	 Note that RAM disks (major=1) are excluded by
	      default.

       -f, --fs
	      Output 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, --help
	      Print a help text and exit.

       -i, --ascii
	      Use ascii characters for tree formatting.

       -m, --perms
	      Output info about device owner, group and mode.  This option  is
	      equivalent to "-o NAME,SIZE,OWNER,GROUP,MODE".

       -l, --list
	      Use the list output format.

       -n, --noheadings
	      Do not print a header line.

       -o, --output list
	      Specify which output columns to print.  Use --help to get a list
	      of all supported columns.

       -r, --raw
	      Use the raw output format.

       -t, --topology
	      Output info about block device topology.	This option is equiva‐
	      lent     to     "-o    NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-
	      SEC,ROTA,SCHED".

AUTHORS
       Milan Broz <mbroz@redhat.com>
       Karel Zak <kzak@redhat.com>

SEE ALSO
       findmnt(8), blkid(8), ls(1)

AVAILABILITY
       The lsblk command is part of the util-linux package  and	 is  available
       from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

Version 1.0			   Apr 2010			      LSBLK(8)

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