Hide

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again.

Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

If you have a new feature suggestion or find a bug, please get in touch via http://commandlinefu.uservoice.com/

Get involved!

You can sign-in using OpenID credentials, or register a traditional username and password.

OpenID

First-time OpenID users will be automatically assigned a username which can be changed after signing in.

Hide

Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for:

» all commands
» commands with 3 up-votes (commandlinefu3)
» commands with 10 up-votes (commandlinefu10)
» commands tagged partition

Hide

News

2011-03-12 - Confoo 2011 presentation: Slides are available from the commandlinefu presentation at Confoo 2011: http://presentations.codeinthehole.com/confoo2011/
2011-01-04 - Moderation now required for new commands: To try and put and end to the spamming, new commands require moderation before they will appear on the site.
2010-12-27 - Apologies for not banning the trolls sooner: Have been away from the interwebs over Christmas. Will be more vigilant henceforth.
2010-09-24 - OAuth and pagination problems fixed: Apologies for the delay in getting Twitter's OAuth supported. Annoying pagination gremlin also fixed.

Hide

Functions

Hide

Credits

Site by David Winterbottom (user root).

Commands tagged partition

Terminal - Commands tagged partition - 18 results

diskutil list

This is sample output - yours may be different.

/dev/disk0
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *750.2 GB   disk0
   1:                        EFI                         209.7 MB   disk0s1
   2:                  Apple_HFS swap                    32.0 GB    disk0s2
   3: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF               536.9 MB   disk0s3
   4:                  Apple_HFS spare                   671.1 MB   disk0s4
   5:          Apple_CoreStorage                         99.5 GB    disk0s5
   6:                 Apple_Boot Boot OS X               650.0 MB   disk0s6
   7:          Apple_CoreStorage                         616.3 GB   disk0s7
   8:                 Apple_Boot Boot OS X               134.2 MB   disk0s8
/dev/disk1
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS OS                     *99.2 GB    disk1
/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *616.0 GB   disk2
   1:                        EFI                         209.7 MB   disk2s1
   2:                        ZFS                         615.7 GB   disk2s2
/dev/disk3
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy gjp22                  *614.2 GB   disk3
/dev/disk4
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *640.1 GB   disk4
   1:                        EFI                         209.7 MB   disk4s1
   2:                        ZFS                         639.8 GB   disk4s2
/dev/disk5
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy zhandy                 *635.7 GB   disk5
   1:       zfs_filesystem_proxy Pocket Time Machine     85.1 GB    disk5s1
/dev/disk7
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *2.0 TB     disk7
   1:                        EFI                         209.7 MB   disk7s1
   2:                        ZFS                         2.0 TB     disk7s2
/dev/disk8
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:             zfs_pool_proxy tall                   *2.0 TB     disk8
   1:       zfs_filesystem_proxy backups                 62.4 GB    disk8s1
   2:       zfs_filesystem_proxy LaCie d2 Extreme        50.7 GB    disk8s1s1
   3:       zfs_filesystem_proxy 11G                     50.7 GB    disk8s1s1s1
   4:       zfs_filesystem_proxy 12A                     50.7 GB    disk8s1s1s2
   5:       zfs_filesystem_proxy blocky                  54.2 GB    disk8s1s2
   6:       zfs_filesystem_proxy gjp22                   376.0 GB   disk8s1s3
   7:       zfs_filesystem_proxy zhandy                  478.3 GB   disk8s1s4
   8:       zfs_filesystem_proxy Pocket Time Machine     107.4 GB   disk8s1s4s1

2012-10-06 21:18:27

User: grahamperrin

Tags: partition osx

-1

Up
Down

detect partitions

List all disks and all of their partitions on OS X. http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man8/diskutil.8.html

ls /dev/disk* | xargs -n 1 -t sudo zdb -l | grep GPTE_

2012-10-06 20:19:45

User: grahamperrin

Functions: grep ls sudo xargs

Tags: partition zfs darwin uuid zevo

Up
Down

Show the UUID of a filesystem or partition

Show the UUID-based alternate device names of ZEVO-related partitions on Darwin/OS X. Adapted from the lines by dbrady at http://zevo.getgreenbytes.com/forum/viewtopic.php?p=700#p700 and following the disk device naming scheme at http://zevo.getgreenbytes.com/wiki/pmwiki.php?n=Site.DiskDeviceNames

lsblk -o NAME,TYPE,FSTYPE,LABEL,SIZE,MODEL,MOUNTPOINT

2012-09-12 15:30:25

User: BasketCase

Tags: partition uuid sysfs blkid util-linux

Up
Down

detect partitions

Shows all block devices in a tree with descruptions of what they are.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

blkid -c /dev/null

2012-09-12 13:34:41

User: mhs

Tags: partition uuid sysfs blkid util-linux

Up
Down

detect partitions

`blkid` is an interface to libuuid - it can read Device Mapper, EVMS, LVM, MD, and regular block devices.

-c /dev/null - Do not use cached output from /etc/blkid.tab or /etc/blkid/blkid.tab (RHEL)

-i - Display I/O Limits (aka I/O topology) information (not available in RHEL)

-p - Low-level superblock probing mode (not available in RHEL)

parted /dev/sda print

2012-06-05 09:11:06

User: mesuutt

Tags: partition parted

Up
Down

See size of partitions as human readable

See size of partitions as human readable and get extra informations about hdd and partitions

fdisk -l /dev/sda | grep -E sda[0-9]+ | sed s/*// | awk '{printf ("%s %f ",$1,$2/512); if($2%512){ print "BAD" }else {print "Good"} }' | column -t

2012-05-18 08:34:36

User: The_IceMan_Blog

Functions: awk column fdisk grep sed

Tags: Linux partition ssd alignment hdd

Up
Down

Check if you partition are aligned

To get most of you HDD/SSD driver you need to make sure you partition are aligned, if not the speed penalty can be up to 50% slower!

this simple one liner will check to see if each partition start sector is divided by 512

you need to change sda with your driver

if you find the one of your partitions is not aligned use gparted to move the start sector of the partition to be divided of 512

echo "0,,L" | sfdisk /dev/sdX

2012-04-09 18:36:24

User: twobitsprite

Functions: echo

Tags: Linux sfdisk partition fdisk

Up
Down

Partition a new disk as all one partition tagged as LINUX_NATIVE

Creates a single primary partition starting at sector 0 and extending to the end of the disk. Use with care.

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

losetup /dev/loop0 harddrive.img; kpartx -a -v /dev/loop0; mount /dev/mapper/loop0p1 /mountpoint/

2010-10-30 11:52:11

User: oernii3

Functions: losetup mount

Tags: mount image partition loop oernii

Up
Down

Mount partition from image (without offset mount)

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

mount -o remount,ro /dev/foo /

2010-10-30 03:51:53

User: vlan7

Functions: mount

Tags: Filesystem partition devices

Up
Down

Remount an already-mounted filesystem without unmounting it

Necessary for fsck for example.

The remount functionality follows the standard way how the mount command works with options from fstab. It means the mount command doesn't read fstab (or mtab) only when a device and dir are fully specified. After this call all old mount options are replaced and arbitrary stuff from fstab is ignored, except the loop= option which is internally generated and maintained by the mount command.

It does not change device or mount point.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

blkid /dev/sda7

2010-09-05 12:20:45

User: lineak

Tags: partition uuid

Up
Down

Show the UUID of a filesystem or partition

Shows the UUID of the given partition (here /dev/sda7). Doesn't need to be root.

sudo foremost -i /dev/sda -o /recovery

2010-08-19 22:27:41

User: vlan7

Functions: sudo

Tags: partition recovery devices forensics

Up
Down

Recover deleted Binary files

The above command assumes the lost data is on /dev/sda and you previously issued the following command to mount _another_ disk or partition (/dev/sdb1) on /recovery

sudo mount /dev/sdb1 /recovery

If you don't do this, the data could be overwrited!

foremost is a very powerful carving tool. By default foremost recovers all known file types. If you want to reduce the amount of files that are recovered you can specify the file type you are looking for. Read the man page to know the available file types.

i.e to recover JPEG pictures append to foremost the switch -tjpg

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

df -l | grep -e "9.%" -e "100%"

2010-04-26 17:57:54

User: dooblem

Functions: df grep

Tags: mount partition grep df

Up
Down

Report full partitions from a cron

Reports all local partitions having more than 90% usage.

Just add it in a crontab and you'll get a mail when a disk is full.

(sending mail to the root user must work for that)

sfdisk -d /dev/sda | sfdisk /dev/sdb

2010-02-03 14:49:07

User: wincus

Tags: sfdisk partition

Up
Down

copy partition table from /dev/sda to /dev/sdb

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sfdisk -d /dev/sda | sed 's/sda/sdb/g' | sfdisk /dev/sdb

2009-12-22 23:35:30

User: kobayashison

Functions: sed

Tags: sfdisk partition

Up
Down

copy partition table from /dev/sda to /dev/sdb

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

sfdisk /dev/sdb <(sfdisk -d /dev/sda| perl -pi -e 's/sda/sdb/g')

2009-12-22 22:45:41

User: linuxrawkstar

Functions: perl

Tags: sfdisk partition

-3

Up
Down

copy partition table from /dev/sda to /dev/sdb

*as long as the drives are exactly the same* then this command copies the partition table on /dev/sda to /dev/sdb

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

lomount -diskimage /path/to/your/backup.img -partition 1 /mnt/foo

2009-07-22 11:32:52

User: olorin

Tags: backup Linux mount mount point sfdisk image partition recovery restore

Up
Down

Mount a partition from within a complete disk dump

Instead of calculating the offset and providing an offset option to mount, let lomount do the job for you by just providing the partition number you would like to loop mount.

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate

hwinfo --block --short

2009-04-24 11:13:31

User: Schneckentreiber

Tags: mount partition harddisk hardware storage

Up
Down

Show all detected mountable Drives/Partitions/BlockDevices

Yields entries in the form of "/dev/hda1" etc.

Use this if you are on a new system and don't know how the storage hardware (ide, sata, scsi, usb - with ever changing descriptors) is connected and which partitions are available.

Far better than using "fdisk -l" on guessed device descriptors.

2009-03-06 21:29:13

User: Alanceil

Functions: grep head mount sed tail

Tags: backup Linux mount mount point sfdisk image partition recovery restore

Up
Down

Mount a partition from within a complete disk dump

Suppose you made a backup of your hard disk with dd:

dd if=/dev/sda of=/mnt/disk/backup.img

This command enables you to mount a partition from inside this image, so you can access your files directly.

Substitute PARTITION=1 with the number of the partition you want to mount (returned from sfdisk -d yourfile.img).