lsblk man page on ElementaryOS

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LSBLK(8)		     System Administration		      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.

       -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
	      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.

       -P, --pairs
	      Use key="value" output format.

       -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".

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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