What should I do if Linux does not have the duf command?

Solution: 1. Use wget command to download the installation package of duf command from GitHub, the syntax is "wget ​​https://github.com/muesli/duf/releases/download/v0.8.1/duf_0.8.1 _linux_amd64.deb"; 2. Use the dpkg command to install the duf command, the syntax is "dpkg -i duf_0.8.1_linux_amd64.deb".

The operating environment of this tutorial: Ubuntu 18.04 system, Dell G3 computer.

For analyzing disk usage, there are two very useful commands: du and df. Simply put, the functions of these two commands are as follows:

• du command: It is the abbreviation of the English word disk usage and is mainly used to check how much disk space is occupied by files and directories;

• df command: It is the abbreviation of the English word disk free. It is mainly used to check how much space is used on the disk, how much space is left, etc.

Especially when your disk is full, the combination of these two commands is very useful.

However, these two commands are separate after all. It would be great if they could be integrated. After all, they are the same type of commands.

Don’t mention it, someone actually integrated these two commands. It is: duf command!

duf is a cross-disk usage breakup tool written in Golang. It can output disk usage in a table (adaptive) form, and can also sort the results according to needs. It is very useful. convenient! The

duf command displays the disk space utilization, as shown in the following figure:

The result output of the duf command is more readable A structured way to examine system space.

The display is easy to read, right? Today we will share how to install and use the duf command in Linux.

Installing duf

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Taking Ubuntu as an example, we cannot directly use the apt-get command to install it and need to install it manually.

First, download the duf command installation package from GitHub:

wget https://github.com/muesli/duf/releases/download/v0.8.1/duf_0.8.1_linux_amd64.deb

Then, use the dpkg command to install

dpkg -i duf_0.8.1_linux_amd64.deb

In addition, you can also install it according to its instruction manual, The address is: https://github.com/muesli/duf

Usage example of duf

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Use duf to check disk usage and free space

You can use the duf command directly without adding any options, which will display a list of installed devices:

dnf

View specified devices

You can use duf to list one or more devices at the same time. You only need to specify the path where the port or device is installed:

duf

See the following example:

duf

Filter driver

duf utility provides various options so that you can filter the output and obtain the expected results.

For example, you can use the --only option to only display specific devices:

duf

For example, if we want to list local devices, we can use the following command:

duf --only local

If you want to view a certain file system, you can use the --only-fs option. For example, to view tmpfs (temporary file system), you can use the following command:

duf

Sort output

You can use the --sort option Sort the output results based on size, usage, etc. For example:

duf

Get JSON output

If you like the output in json format, you can use the --json option:

duf

If you want to save the results in a text file, you can redirect the results:

duf --json > duf.json

Related recommendations: "Linux Video Tutorial"

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