linux--Viewing disk space usage

1.

Linux View disk space size command

The Df-h DF command is a Linux system that views the file system as a disk partition, which can be added with parameters to view the disk's remaining space information, the command format: DF-HL display format: File system capacity is used available% mount point Filesystem Size used Avail U Se% mounted on/dev/hda2 45G 19G 24G 44%//dev/hda1 494

Df-h

The DF command is a Linux system that views the file system as a disk partition, which can be added with parameters to view the disk's remaining space information, command format:

Df-hl

The display format is:

File system capacity has been used with available% mount points

Filesystem Size used Avail use% mounted on

/dev/hda2 45G 19G 24G 44%/

/DEV/HDA1 494M 19M 450M 4%/boot

/dev/hda6 4.9G 2.2G 2.5G 47%/Home

/dev/hda5 9.7G 2.9G 6.4G 31%/opt

None 1009M 0 1009M 0%/dev/shm

/dev/hda3 9.7G 7.2G 2.1G 78%/usr/local

/DEV/HDB2 75G 75G 0 100%/

/DEV/HDB2 75G 75G 0 100%/

With the above output as an example, the meaning of the expression is:

The second hard drive interface (b), the second partition (2), the capacity is 75G, with 75G, usable is 0, so the utilization is 100%, is mounted to the root partition directory (/).

The following is an explanation of the relevant commands:

123456789

df -hl 查看磁盘剩余空间df -h 查看每个根路径的分区大小 du -sh [目录名] 返回该目录的大小 du -sm [文件夹] 返回该文件夹总M数du -h [目录名] 查看指定文件夹下的所有文件大小（包含子文件夹）

More functions you can enter the command to view:

DF--help

Du--help

2.

To view the partition of a hard disk #sudo fdisk-l

View IDE Hard disk information #sudo hdparm-i/dev/hda

View stat hard Drive information #sudo hdparm-i/DEV/SDA or #sudo apt-get install blktool #sudo BLKTOOL/DEV/SDA ID

View hard disk remaining space #df-H #df-H

View Directory footprint #du-HS directory name

The USB flash drive can't unload #sync fuser-km/media/usbdisk

linux--Viewing disk space usage