Examining disk space on Linux

$ alias bysize="ls -lhS"

Utilizing the fdisk command

The fdisk command can present helpful stats in your disk partitions. Right here’s an instance:

$ sudo fdisk
fdisk: unhealthy utilization
Strive 'fdisk --help' for extra info.
$ sudo fdisk -l
Disk /dev/sda: 14.91 GiB, 16013942784 bytes, 31277232 sectors
Disk mannequin: KINGSTON SNS4151
Items: sectors of 1 * 512 = 512 bytes
Sector measurement (logical/bodily): 512 bytes / 512 bytes
I/O measurement (minimal/optimum): 512 bytes / 512 bytes
Disklabel sort: gpt
Disk identifier: 818C0FC9-CBBA-49E5-953B-A511A4E40A3D
System       Begin      Finish  Sectors  Dimension Sort
/dev/sda1     2048  1230847  1228800  600M EFI System
/dev/sda2  1230848  3327999  2097152    1G Linux filesystem
/dev/sda3  3328000 31277055 27949056 13.3G Linux filesystem
Disk /dev/zram0: 3.7 GiB, 3967811584 bytes, 968704 sectors
Items: sectors of 1 * 4096 = 4096 bytes
Sector measurement (logical/bodily): 4096 bytes / 4096 bytes
I/O measurement (minimal/optimum): 4096 bytes / 4096 bytes
Disk /dev/loop0: 103.99 MiB, 109043712 bytes, 212976 sectors
Items: sectors of 1 * 512 = 512 bytes
Sector measurement (logical/bodily): 512 bytes / 512 bytes
I/O measurement (minimal/optimum): 512 bytes / 512 bytes
Disk /dev/loop1: 8.44 MiB, 8847360 bytes, 17280 sectors
Items: sectors of 1 * 512 = 512 bytes
Sector measurement (logical/bodily): 512 bytes / 512 bytes
I/O measurement (minimal/optimum): 512 bytes / 512 bytes

Utilizing the lsblk command

The lsblk command gives very helpful info in your disk partitions. The output proven beneath clearly reveals that the disk (sda) had three partitions and their sizes and mount factors.

$ lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINTS
loop0    7:0    0  104M  1 loop /var/lib/snapd/snap/core/16928
loop1    7:1    0  8.4M  1 loop /var/lib/snapd/snap/gping/13
sda      8:0    0 14.9G  0 disk
├─sda1   8:1    0  600M  0 half /boot/efi
├─sda2   8:2    0    1G  0 half /boot
└─sda3   8:3    0 13.3G  0 half /dwelling
/
zram0  252:0    0  3.7G  0 disk [SWAP]

Wrap-up

These instructions described on this submit will help you consider disk storage, diagnose disk utilization points and handle disk area successfully.