Linux команды терминала usb

List USB Devices Linux

In the world of USB computer peripherals, almost everyone uses some sort of USB devices in their computer. These days there are USB webcams, USB hard drives, USB stick also known as PenDrive etc. Almost every device has a USB version of it. So if you’re using Linux, listing what USB device is connected to your system might be necessary at some point.

There are many programs and many ways to list USB devices on Linux.

In this article, I will show you how to list USB devices on Linux. I am using Ubuntu 18.04 Bionic Beaver for the demonstration, but these commands are available on every Linux distribution. So let’s get started.

Listing USB Devices using lsusb Command

The widely used lsusb command can be used to list all the connected USB devices in Linux.

As you can see from the output of the lsusb command in the screenshot below, all the connected USB device is listed. The Bus ID, Device ID, USB ID, and a title is displayed in the output of lsusb command.

As you can see in the marked section of the screenshot below, Realtek Semiconductor Corp. with ID 0bda:57cb, this is my USB Webcam.

You can’t tell that it’s a Webcam by looking at the output of lsusb command, Can you? Nope! So how do I know this? It’s because I checked the output of the lsusb command before and after connecting the USB Webcam and once I compared the outputs, the newly added row is the USB device I connected. Plain! But there are ways to find out what the USB device is.

You can use the dmesg command to find out more information about the connected USB devices. The last connected USB device is the easiest to find with dmesg command. It is more widely used for debugging purpose. You will shortly see why.

You run dmesg command as follows:

As you can see in the yellow marked box in the screenshot below, these are information about the USB device I connected last, which was my USB Webcam. You can see in one of the blue marked box, the USB device I connected is a HD UVC WebCam and its ID is 0bda:57cb.

By now you may have found out that the output of dmesg command is system log messages. Well yes, it is.

You can also search for a specific USB device by its ID in the dmesg system log.

Run the following command to open the output of dmesg command with less text pager:

You should see the following window:

Now to search for a string, press / key on your keyboard. And you should the a / appear on the bottom of terminal window as marked in the screenshot below.

Now type in the USB device ID. For example, earlier when I listed the connected USB devices with lsusb command, one of the USB device had ID 0bda:57cb

Type in the USB Device ID and press . As you can see in the marked section of the screenshot below, the search string is marked white.

You may press and arrow keys to navigate up and down and read through it. You should find a lot of information about that USB device as you can see in the marked section of the screenshot below.

Listing USB devices with usb-devices Command

You can run the following command to list all the connected USB devices of your system:

As you can see in the screenshot below, all the connected USB devices are listed. we can find out pretty much the same information as before with usb-devices command.

Listing Block USB Devices

If you want to list all the USB block storage devices, that is all the USB storage devices, then you can use the lsblk or fdisk command to do so.

Listing USB block storage devices with lsblk:

As you can see in the screenshot below, all the available block storage devices (including the USB block storage devices) are listed.

You can get almost the same information as lsblk command with blkid command. But you have to run it as root as follows:

You can also use fdisk command to list all the USB block storage devices as follows:

As you can see in the screenshot below, the connected block storage devices (including the USB devices) are listed.

That’s how you list all the USB devices on Linux. Thanks for reading this article.

About the author

Shahriar Shovon

Freelancer & Linux System Administrator. Also loves Web API development with Node.js and JavaScript. I was born in Bangladesh. I am currently studying Electronics and Communication Engineering at Khulna University of Engineering & Technology (KUET), one of the demanding public engineering universities of Bangladesh.

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How to List USB Devices Connected to Your Linux System

Mostly, people are interested in knowing what USB devices are connected to the system. This may help troubleshoot the USB devices.

The most reliable way is to use this command:

It shows the webcam, Bluetooth, and Ethernet ports along with the USB ports and mounted USB drives.

But understanding the output of lsusb is not easy and you may not need to complicate things when you just want to see and access the mounted USB drives.

I will show you various tools and commands you can use to list USB devices connected to your system.

I have connected a 2GB pen-drive, 1TB external HDD, Android smartphone via MTP and USB mouse in the examples unless stated otherwise.

Let me start with the simplest of the options for desktop users.

Check connected USB devices graphically

Your distribution file manager can be used to view USB storage devices connected to your computer. As you can see in the screenshot of Nautilus (GNOME File Manager) below.

The connected devices are shown in the sidebar (Only USB Storage devices are shown here).

You can also use GUI applications like GNOME Disks or Gparted to view, format, and partition the USB Storage devices connected to your computer. GNOME Disks is preinstalled in most distributions using GNOME Desktop Environment by default.

This app also works as a very good partition manager too.

Enough of the Graphical tools. Let us discuss the commands you can use for listing the USB devices.

Using the mount command to list the mounted USB devices

The mount command is used for mounting partitions in Linux. You can also list USB storage devices using the same command.

Generally, USB storage is mounted in the media directory. Thus, filtering the output of mount command on media will give you the desired result.

Using df command

df command is a standard UNIX command used to know the amount of available disk space. You can also use this command to list USB storage devices connected using the command below.

Using lsblk command

The lsblk command is used to list block devices in the terminal. So, here also by filtering the output containing media keyword, you can get the desired result as shown in the screenshot below.

If you are more curious, you can use the blkid command to know the UUID, Label, Block size etc.

This command gives more output as your internal drives are also listed. So, you have to take references from the above command to identify the device you wish to know about.

Using fdisk

fdisk, the good old command line partition manager, can also list the USB storage devices connected to your computer. The output of this command is also very long. So, usually, the connected devices get listed at the bottom as shown below.

Inspecting /proc/mounts

By inspecting the /proc/mounts file, you can list the USB Storage devices. As you can notice, it shows you the mount options being used by filesystem along with the mount point.

cat /proc/mounts | grep media

Display all the USB devices with lsusb command

And we revisit the famed lsusb command.

Linux kernel developer Greg Kroah-Hartman developed this handy usbutils utility. This provides us with two commands i.e. lsusb and usb-devices to list USB devices in Linux.

The lsusb command lists all the information about the USB bus in the system.

As you can see this command also shows the Mouse and Smartphone I have connected, unlike other commands (which are capable of listing only USB storage devices).

The second command usb-devices gives more details as compared but fails to list all devices, as shown below.

Greg has also developed a small GTK application called Usbview. This application shows you the list of all the USB devices connected to your computer.

The application is available in the official repositories of most Linux distributions. You can install usbview package using your distribution’s package manager easily.

Once installed, you can launch it from the application menu. You can select any of the listed devices to get details, as shown in the screenshot below.

Conclusion

Most of the methods listed are limited to USB storage devices. There are only two methods which can list other peripherals also; usbview and usbutils. I guess we have one more reason to be grateful to the Linux Kernel developer Greg for developing these handy tools.

I am aware that there are many more ways to list USB devices connected to your system. Your suggestions are welcome.

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How to List USB Devices in Linux

Nowadays, many computer peripherals such as webcams, mice, scanners, printers, hard drives, USB (Pendrive) now come as USB devices. Once these devices are connected to the Desktop or server it’s important to know the device name or device path. This helps to identify USB devices for the tasks such as formatting.

In Linux, all device files are stored in /dev directory and must be available to the OS during the system boot.

In this guide, we will show you the various ways to list USB devices on Linux. Most commands mentioned here should work on all Linux distributions.

List USB Device Names Using df Command

The df command is a useful command that can help list all mounted volumes, including your USB drives.

Once a USB device is plugged into a Linux system, especially for Desktop, it is automatically mounted in the /media partition and becomes ready for use.

From the output above, I have 1 USB drive /dev/sdb with 2 partitions /dev/sdb1 and /dev/sdb2

List USB Device Name using lsblk Command

Lsblk command is used to list all block devices on a Linux system. From the list, you can filter USB devices using the grep command.

To retrieve additional information such as the UUID, manufacturer and filesystem type, use the blkid command as shown.

List USB Device Names Using fdisk Command

You can use the good old fdisk command that is used for partitioning volumes to list all the partitions on the Linux system, including the USB drives.

The command will display detailed information about your USB volume including the partitions, size of the volume, sectors, and the filesystem type.

List USB Devices Details using lsusb Command

The lsusb command, also known as the “List USB” command, is used in Linux to list all the USB devices attached to the system.

The output above displays the Bus ID, Device ID, USB ID, and the vendor or manufacturer of the USB devices

The lsusb command simply lists the connected devices and does not provide further information about the usb devices.

For more information about the attached USB devices use the dmesg command. The dmesg command also known as “driver message” or “display the message” is used for examining the boot messages. Additionally, it is used for debugging hardware-related issues and printing messages generated by device drivers.

You can use the dmesg command and grep to narrow down to USB devices.

Also, you can pipe the output of dmesg command to less for easier scrolling.

On the output, you can search for a specific string by pressing the forward slash key ( / ) on your keyboard followed by the name or Device ID of the USB device.

In my case, I’m searching for more information regarding a USB device called SanDisk, which is actually my removable pen drive.

List USB controllers and devices using usb-devices

The usb-devices command is a shell script that allows you to list all the USB controllers and the USB devices connected to your PC. It prints out details of the USB device such as the manufacturer, product name, serial number, and so much more. Here’s the output of the command:

Conclusion

In this guide, we have demonstrated different ways to list the USB devices attached to the Linux system.

Which is your favorite command to list USB? Please provide your suggestions and feedback in the comment section.

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