LSBLK

Section: Maintenance Commands (8)
Updated: Apr 2010
Index Return to Main Contents
 

NAME

lsblk - list block devices  

SYNOPSIS

lsblk [options]

lsblk [options] device...  

DESCRIPTION

lsblk will list information about all or selected block devices. The lsblk command reads sysfs filesystem to gather information.

The command prints all block devices (except RAM disks) in the tree-like format by default. See lsblk --help to get 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 devices by 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 are provided by blkid(8) command.
-h, --help
Print help 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
Define output columns. Use --help to get list of all supported columns.
-r, --raw
Use raw output format.
-t, --topology
Output info about block device topology. This option is equivalent to -o NAME,ALIGNMENT,MIN-IO,OPT-IO,PHY-SEC,LOG-SEC,ROTA,SCHED.
 

AUTHORS

Milan Broz <[email protected]>
Karel Zak <[email protected]>
 

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/.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
AUTHORS
SEE ALSO
AVAILABILITY

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