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This document is a WORK IN PROGRESS.
This is just a quick personal cheat sheet: treat its contents with caution!

Disks

TODO: split this cheat sheets in multiple dedicated ones (one per command).

Reference(s)

Table of contents

udisksctl

# emerge -a sys-fs/udisks

# pacman -S udisks2

# apt install udisks2

# yum install udisks2

# dnf install udisks2

Turn off a disk after unmounting it: 

$ sudo udisksctl unmount -b /dev/disk/by-label/disklabal && sudo udisksctl power-off -b /dev/disk/by-label/disklabal

df

  • Check disks space: 
    $ df -kh

TODO

du

TODO

lsblk

  • Check disks partitions: 
    $ lsblk -f # (no need for blkid)

ncdu

  • Browse disks space: 
    $ ncdu

mount/umount

  • Mount an NTFS disk with 755 permissions for directories and 644 for files: 

    $ sudo mount -t ntfs-3g /dev/... /media/... -o uid=1001,gid=1001,dmask=022,fmask=133

  • Mount a CIFS disk (e.g. samba server?) (⚠️ Prerequisite package for Ubuntu: cifs-utils): 

    $ sudo mount -t cifs "//server.address/path/to/plop" /mnt/mountpoint -o user=username,password=passphrase

  • Unmount a disk: 

    $ sudo umount /dev/disk/by-label/
or
$ sudo umount /media/disk/mount-location/

  • Eject a disk: 

    $ sudo umount /dev/disk/by-label/
or
$ sudo umount /media/disk/mount-location/

  • Very safe way to unplug HDD by putting it in sleep mode first: 

    $ sudo sync; sudo hdparm -Y /dev/disk/by-label/ # now one can unplug hdd

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