June 16, 2014

9 commands to check hard disk partitions and disk space on Linux

In this post we are taking a look at some commands that can be used to check up the partitions on your system. The commands would check what partitions there are on each disk and other details like the total size, used up space and file system etc.
Commands like fdisk, sfdisk and cfdisk are general partitioning tools that can not only display the partition information, but also modify them.
1. fdisk
Fdisk is the most commonly used command to check the partitions on a disk. The fdisk command can display the partitions and details like file system type. However it does not report the size of each partitions.
$ sudo fdisk -l

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x30093008

Device Boot Start End Blocks Id System
/dev/sda1 * 63 146801969 73400953+ 7...

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9 commands to check hard disk partitions and disk space on Linux

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