lsblk


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.

       -D, --discard
              Print information about the discard (TRIM,  UNMAP)  capabilities
              for each device.

       -e, --exclude list
              Exclude the devices specified by a comma-separated 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
       -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".

NOTES
       For  the partitions are some information (e.g. queue attributes) inher-
       ited from parental device.

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/.



util-linux                        April 2010                          LSBLK(8)
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