How to check available hard drive space in Linux

Source: https://opensource.com/article/18/7/how-check-free-disk-space-linux

If one day you find that your VPS’s hard drive seems to be insufficient, you may consider referring to this article.

df

The df command means "disk-free" and displays the available and used disk space on a Linux system.

df -h displays disk space in human-readable format.

df -a displays the complete disk usage of the file system, even if the Available field is 0.

df -T displays disk usage and the file system type for each block (for example, xfs, ext2, ext3, btrfs, etc.).

df -i displays used and unused inodes.

du

du displays disk usage of files, directories, etc., in kb by default.

du -h displays the disk usage of all directories and subdirectories in human-readable form. It is recommended to run it in the root directory, which is more intuitive.

du -a displays disk usage for all files.

du -s provides the total disk space used by a specific file or directory.

ls -al

ls -al lists the entire contents and size of a specific directory.

stat

stat displays the size and other statistics of a file/directory or file system.

fdisk -l

fdisk -l displays disk size and disk partition information.

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