Can linux get the hard disk size?

can be obtained. Obtaining method: 1. Use the df command to view the available and used disk space in the system, the syntax is "df -h"; 2. Use the du command to display the disk usage of files, folders, etc. in the default kilobyte size Situation; 3. Use the "ls -al" command to list the entire contents and size of a specific directory; 4. Use the stat command to display the size and other statistical information of files/directories or file systems; 5. Use " fdisk -l" command can display the disk size and disk partition information.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

Linux can get the hard disk size.

At work, we often encounter situations where the disk is full, especially after a server has been running for N years, it will be filled with various junk files, such as: intermediate files generated by compilation, Packaged image files, log files, etc.

Don’t ask me how I know, my last company’s server was like this. I need to delete some useless files every day to free up some space for work.

How to check the available space of Linux system disk? Below I will introduce to you 5 commands that I commonly use in my work.

df command

#df command is the abbreviation of the English word disk-free, used to view the disk in the Linux system Available and used disk space. This command generally has the following common options:

• df -h: Display disk space in human-readable format (otherwise the default display unit is bytes, which is not intuitive)
• df -a: Contains all file systems

• ##df -T : Displays disk usage and the file system type of each block (e.g., xfs, ext2, ext3, btrfs, etc.)

• ##df -i

  : Display used and free inodes

#If you don’t like typing code and prefer to use a graphical interface, then in the GNOME desktop you can use a A software called

Disks

(gnome-disk-utility) is used to obtain this information. Disks After booting you can view all the disks detected by your computer and click on a partition to see details about it, including used and remaining space.

du command

du

command is the abbreviation of the English word disk useage , which displays disk usage of files, folders, etc. in default kilobyte size. Commonly used options include the following:

• du -h

  : Display the disk usage of all directories and subdirectories in human-readable format

• du -a

  : Display the disk usage of all files

• du -s

  : Display only the total, only List the final total value

Similarly, in the GNOME desktop, there is also a software called

Disk Usage

, You can check the disk usage very intuitively. In the KDE desktop, the corresponding software is Filelight software. In both software, disk usage is mapped to a series of concentric circles, with the base folder in the middle (usually your

/home

directory, but you can set it yourself ), each outer ring represents a deeper directory level. Hover your mouse anywhere to get detailed information about the space occupied by this part of the disk.

ls -al command

ls

The command is familiar to everyone, use ls The -al command lists the entire contents of a specific directory and its size.

stat command

stat

The command can be directly followed by a file or directory to display the file / Directory or file system size and other statistics.

fdisk -l command

fdisk -l

can display the disk size and disk partition information.

The above commands are very commonly used when I check the available disk space, and they are all built-in commands in the Linux system and do not require additional installation. There are also some third-party tools with similar functions, such as Disks, Ncdu and other tools, which can visually display disk space utilization.

Related recommendations: "Linux Video Tutorial"

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