Trending November 2023 # Fix Dev Error 6066 In Call Of Duty Modern Warfare And Warzone # Suggested December 2023 # Top 19 Popular

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Here is a complete guide on how to fix Dev Error 6066 in Call of Duty Modern Warfare and Warzone. A lot of Modern Warfare and Warzone users have complained being encountering the dev error 6066 when trying to launch the game. When triggered, you will get the following error message popped up:

DirectX encountered an unrecoverable error

Now, if you are also getting the same error in Warzone or Modern Warfare, we got you covered. In this post, we will be discussing multiple fixes that have helped users get rid of this error. So, you can also try these fixes and resolve the error.

What is Dev error 6066 Warzone?

Dev Error 6066 in COD Modern Warzone game is a launch error that occurs when you try to open the game. This error could be a result of a lot of factors. It can be caused due to outdated OS, outdated graphics drivers, lack of VRAM, conflicts with background applications, PC overclocking, etc. Broken game files or corrupt installation files could also be the reason for this error.

What is Dev error 6065 COD Warzone?

Like Dev Error 6165, 6071, 6066, etc., Dev Error 6065 in Call of Duty Modern Warzone game is related to DirectX APIs which may occur when you are playing the main campaign. With such an error, players are kicked out of the game. It might happen if game files are corrupt, Activision servers are down, etc. To fix the issue, first, check if Activision servers or Online Services for COD Warzone are down or working fine. You should also run the game with admin privileges, set its priority process to high, turn off the Crossplay feature, etc.

Fix Dev Error 6066 in Call of Duty Modern Warfare and Warzone

Here are the fixes that you can try to get rid of DEV ERROR 6066, DirectX encountered an unrecoverable error in Modern Warfare and Warzone:

Update Windows as well as graphics drivers.

Increase VRAM.

Update DirectX.

Close unnecessary background apps.

Disable overclocking.

Turn off in-game overlays.

Verify the integrity of game files.

Reinstall the game.

1] Update Windows as well as graphics drivers

Additionally, you should also ensure that you have installed the latest graphics drivers on your system. Faulty and outdated graphics drivers are known to cause errors like this. So, you need to update graphics drivers to fix the error. To update your GPU card drivers, here are the methods you can use:

You can also download the latest version of your graphics driver from the official website of the device manufacturer.

See if updating Windows and graphics drivers help you fix the error. In case you are already using the latest version of Windows and drivers, there might be some other underlying cause of the issue. So, you can try the next potential fix to resolve the error.

2] Increase VRAM

Increasing VRAM may help you get rid of the error at hand as per developers and affected users.  A minimum of 8 GB of RAM is required to run Warzone without any problem. So, if your PC is running out of memory during gaming, enhance virtual memory to fix the error. It is done by converting hard drive sectors into virtual memory. Here is how you can do that:

Next, in the Advanced tab, tap on the Settings button present under the Performance section.

After that, go to the Advanced tab in the new dialog window and tap on the Change button.

Then, disable the checkbox called Automatically manage paging file size for all drives and select the drive where your game is installed.

Now, choose Custom size and type a value greater than 2GB for both Initial size and Maximum size.

Finally, restart your PC and then see if the error is fixed or not.

In case you still deal with the same error, go ahead and try the next potential fix to resolve the error.

Read: Fix Error Code 664640 in Call of Duty Modern Warfare or Warzone

3] Update DirectX 4] Close unnecessary background apps

You might be receiving this error if you have too many apps running in the background. There are chances that the apps interfere with Warzone or Modern Warfare. Hence, it is recommended that you disable all the background applications to fix the error. You can open Task Manager and from the Processes tab, choose the application you want to close. After that, press the End Task button to close it. Do it for all other applications and then see if the error is fixed or not.

Read: Fix Dev Error 6034 in Call of Duty, Modern Warfare and WarZone.

5] Disable overclocking

Overclocking is a handy function that speeds up your PC. However, it also causes stability issues with applications and games for some users. So, if you have enabled overclocking, try disabling it by entering the BIOS of your motherboard. See if this fixes the error for you. In case you are not using overclocking and still getting the error, try the next potential fix to resolve it.

Read: COD Modern Warfare DEV ERROR 6068, 6065, 6165, 6071.

6] Turn off in-game overlays

This error could also be a result of in-game overlays. Hence, if the scenario is applicable, disable the in-game overlays and then check if the error is fixed or not. You can disable the FPS Counter of Modern Warfare using the below steps:

Firstly, go to the Options menu of the game and navigate to the General tab.

Now, turn off the Frames Per Second (FPS) toggle present under Telemetry.

Next, try restarting the game and see if the error is fixed.

If you have a GeForce graphics card, you can disable the GeForce Experience Share In-game Overlay using the below steps:

Firstly, start GeForce Experience and move to its Settings.

Now, turn off the Share toggle by going to the General tab

Next, relaunch the game and check if the Dev error 6066 is fixed or not.

You can also try disabling the in-game overlay options in apps like Steam, Discord, etc., and see if that works for you. If not, you can try the next potential fix to get rid of the error.

Read: Fix Modern Warfare Warzone’s High CPU Usage on PC.

7] Verify the integrity of game files

Another potential cause of this error could be missing or corrupted game files of Call of Duty: Modern Warfare or Warzone. In that case, you can try verifying the integrity of the game files to fix the error. There is a dedicated option provided in chúng tôi the game launcher, that allows you to scan and fix broken game files. Here are the steps to use this feature:

Now, there will be a gear/settings icon present next to the Play button; you need to tap on it.

Once done, try relaunching the game and check if the error is stopped now.

If you still get the same error, there is one more fix that you can try. S. move on to the next fix.

See: Fix CoD Warzone DEV ERROR 5476 or 6635.

8] Reinstall the game

If none of the above fixes helped you, the last fix you can try is to reinstall the game. There are chances that you might be dealing with corrupted installation files of the game. So, to fix the error, uninstall the game and then reinstall it. You can follow the below steps to do that:

Firstly, open the chúng tôi game launcher and select the problematic game.

Now, tap on the Gear icon present next to the Play button.

Next, select the Uninstall option and then confirm game uninstallation.

Once the process is done, restart your PC.

Finally, open chúng tôi and then reinstall the game to check if the error is fixed.

Hopefully, this helps!

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You're reading Fix Dev Error 6066 In Call Of Duty Modern Warfare And Warzone

Call Of Duty: Modern Warfare 3 Leaked, Activision Already Hunting Pirates

While Call of Duty: Modern Warfare 3 is scheduled to appear on November 8, it seems that some gamers are already enjoying a leaked version of it, as a new report says that one of the game’s two discs has been stolen from a warehouse in California and is already being multiplied by pirates. Another major Call of Duty release, another piracy scandal, as VentureBeat reports that the upcoming Modern Warfare 3 is already out in the wild and enjoyed by many video game pirates. This is possible because a warehouse worker in Fresno, California, has reportedly stolen the second disk of Modern Warfare 3, or perhaps even the full PC copy, and leaked it on the web for pirates to download, burn onto discs and play it illegally. This is similar to the scandal that plagued Black Ops last year, when another early copy of the game was leaked on the web before its release. Activision, just like last time, has already begun hunting down pirates that are using this leaked Modern Warfare 3 copy, as investigators are now knocking on doors and tracking down everyone who’s been using it. No word yet on if this leak covers just the PC version or extends to console editions like for the Xbox 360 or PlayStation 3, which do have a habit of appearing a few days or even weeks before the release of full pledged games. As of yet, Activision has yet to release a statement about this leak, but already some pirates are complaining that investigators from the company arrived at their homes, asked them to delete and destroy the pirated copies or be subjected to the $5,000 fine. Call of Duty: Modern Warfare 3 is by far one of the most anticipated releases of the year, so it’s safe to say that Activision won’t be taking any chances and is going to hunt down everyone caught using pirated copies. The game will be out officially on the PC, PlayStation 3, Xbox 360 and Nintendo Wii on November 8.

While Call of Duty: Modern Warfare 3 is scheduled to appear on November 8, it seems that some gamers are already enjoying a leaked version of it, as a new report says that one of the game’s two discs has been stolen from a warehouse in California and is already being multiplied by pirates. Another major Call of Duty release, another piracy scandal, as VentureBeat reports that the upcoming Modern Warfare 3 is already out in the wild and enjoyed by many video game pirates. This is possible because a warehouse worker in Fresno, California, has reportedly stolen the second disk of Modern Warfare 3, or perhaps even the full PC copy, and leaked it on the web for pirates to download, burn onto discs and play it illegally. This is similar to the scandal that plagued Black Ops last year, when another early copy of the game was leaked on the web before its release. Activision, just like last time, has already begun hunting down pirates that are using this leaked Modern Warfare 3 copy, as investigators are now knocking on doors and tracking down everyone who’s been using it. No word yet on if this leak covers just the PC version or extends to console editions like for the Xbox 360 or PlayStation 3, which do have a habit of appearing a few days or even weeks before the release of full pledged games. As of yet, Activision has yet to release a statement about this leak, but already some pirates are complaining that investigators from the company arrived at their homes, asked them to delete and destroy the pirated copies or be subjected to the $5,000 fine. Call of Duty: Modern Warfare 3 is by far one of the most anticipated releases of the year, so it’s safe to say that Activision won’t be taking any chances and is going to hunt down everyone caught using pirated copies. The game will be out officially on the PC, PlayStation 3, Xbox 360 and Nintendo Wii on November 8.

Fix The Call Of Duty Cold War Ui Error 85118 With This Easy Guide

Fix the Call of Duty Cold War UI Error 85118 with this easy guide

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Shooting down the opposing team or blood-thirsty zombies is surely the favorite pastime of pretty much all Call of Duty players.

However, there are times when the game goes haywire, and doing so proves to be impossible, which is why we’re here to lend a helping hand.

Although no official fix patch has been released for the Call of Duty Cold War

UI Error 85118, we have some neat workarounds here for you, to assist in solving the problem.

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Try Outbyte Driver Updater to resolve driver issues entirely:

This software will simplify the process by both searching and updating your drivers to prevent various malfunctions and enhance your PC stability. Check all your drivers now in 3 easy steps:

Download Outbyte Driver Updater.

Launch it on your PC to find all the problematic drivers.

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There’s no denying the fact that Call of Duty is one of the most, if not the most, popular games on the planet, with hundreds of millions of active subscribers each month.

But not even big games such as Call of Duty are free of bugs, errors, and other game-breaking problems that make players scream with frustration.

Lately, Call of Duty Cold War players have been reporting getting some pretty nasty UI errors while enjoying their favorite title.

It’s called UI Error 85118 and it will crash your game if you are unlucky enough to get it. So what can we do? Fix it, of course.

How Can I Fix The Call Of Duty Cold War UI Error 85118?

Almost all the reports that came in flagged the issue as starting when one would scroll through his friend’s list, while in-game.

Almost all of a sudden, boom, the game crashed just like that. As of right now, developers haven’t released an official fix patch, but there are certain workarounds we are about to share with you.

Exit Call of Duty Cold War.

Check for updates.

Select the Updates tab and activate one of the two Auto-update options.

2. Restart your PC

Press the Start button.

3. Check game file integrity

Select Search automatically for drivers.

It goes without saying that quality gaming can be enjoyed without any crashes, lags, or freezes by keeping all drivers up to date and error-free easily. 

However, sometimes, manual checks are hard to perform, that’s why we recommend using an automated assistant that will scan for fresh driver versions daily.

In case you’re a beginner, you don’t have to worry! Outbyte Driver Updater is smart, simple, engaging and its user interface was built to make your life easier.

⇒ Get Outbyte Driver Updater

For the time being that is all you can do in order to deal with this annoying problem. Everyone is still waiting for Activision to solve it.

You should also check out the textures not loading error and Call of Duty Cold War not updating on Xbox guides, just in case you or someone you know needs them

Still experiencing troubles? Fix them with this tool:

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Some driver-related issues can be solved faster by using a tailored driver solution. If you’re still having problems with your drivers, simply install OutByte Driver Updater and get it up and running immediately. Thus, let it update all drivers and fix other PC issues in no time!

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Fix Warzone Fatal Error, Disc Read Error On Windows Pc

If you see the Fatal Error, Disc read error while playing Call of Duty Warzone Modern Warfare, this article may help you fix it. There are many reasons why you are receiving the Fatal Error, Disc read error in Warzone, like the corrupted display drivers, a third-party conflicting app or software, etc. Call of Duty Warzone is a popular battle royale game available for Windows. But similar to any other BR game, Warzone also has been in talk among gamers due to its different kinds of errors. Among all the errors, the one that has been troubling players the most is Disk read error. So, if you are also coming across the same problem, continue with the troubleshooting guide to fix the issue.

Why do I keep getting the fatal error in Modern Warfare?

The most common cause of fatal error in Modern Warfare is corrupted or outdated drivers. Apart from that, there are other causes too. Some users have reported that the error was occurring due to Malwarebytes, whereas some stated that third-party software was the culprit.

Fix Warzone Fatal Error, Disc read error on Windows PC

If Call of Duty Warzone Modern Warfare is crashing with Fatal Error, Disk read error 3.1, 5.0, 6.154, 8.6, etc. on your Windows 11/10 PC, then these suggestions are sure to help you fix the issue:

Update your graphics card driver

Rebuild your game files

Verify the integrity of the game files

Disable the Sonic Studio Virtual Mixer

Disable NVIDIA In-game Overlay

Turn off Malwarebytes or your antimalware software

Turn off HDR

Uninstall the Blitz app

Turn off Discord Overlay

Disable On-demand Texture Streaming in your Game Settings

Run ChkDsk

Run Warzone in Administrator Mode

Change the Installation

Turn Off Game Mode and Xbox Game Bar

Uninstall and reinstall the game

Let’s see all these fixes in detail.

1] Update your graphics card driver

One of the causes of this issue is the corrupted or outdated graphics card driver. Therefore, we suggest you update your graphics card driver and see if it helps. When it comes to updating the graphics card driver, you can follow any of the below-mentioned methods:

You can update the graphics card driver via the Windows Optional Updates feature.

You can visit the manufacturer’s website, download the latest version of your graphics card driver, and install it manually. But before you run the installer file, you have to uninstall the current version of your graphics card driver from the Device Manager.

Update the graphics card driver from the Device Manager. The steps for the same are listed below:

Press Win + R keys. This will open the Run command box.

In the Device Manager, expand the Display adapters node.

After updating your graphics card driver, restart your computer and see if it fixes the problem.

2] Rebuild your game files

Rebuild the COD Warzone game files and see if this helps. Follow the below-listed instructions to rebuild your game files:

Delete all the files. Do not delete the folders.

Again, open the Blizzard chúng tôi client and select the Call of Duty game.

Wait till the process gets completed.

Now, launch the game. It will start downloading the missing files automatically. After the download process gets completed, check if the error is occurring again or not.

3] Verify the integrity of the game files

This solution is for the users who have installed the Call of Duty: Warzone game from the Steam Client. Verify the integrity of the game files and see if this fixes the problem. To do so, go through the following instructions:

Open the Steam Client and go to Library.

Select the Local Files tab.

4] Disable the Sonic Studio Virtual Mixer

If you have an ASUS laptop, you may have Sonic Studio Virtual Mixer installed on it. According to some users, the Sonic audio suite was causing the problem. After disabling it, the problem was fixed.

Launch the Control Panel.

Select Large icons in the View by mode.

If this does not fix the problem, try the next solutions.

5] Disable NVIDIA In-game Overlay

If you have the NVIDIA graphics card, you can try disabling the In-game Overlay in NVIDIA Geforce Experience and see if it brings any changes.

Go through the following instructions:

Log into your NVIDIA account (if you are prompted to do so).

Now, select the GENERAL category from the left side.

Turn off the button next to IN-GAME OVERLAY.

6] Turn off Malwarebytes or your antimalware software

Some users have reported that the error was fixed when they turned off Malwarebytes. If you have installed Malwarebytes or any other antimalware software on your system, disable it and check if you can play the game. If this fixes the problem, you can disable the antimalware software during the gameplay and turn it on again after exiting the game.

7] Turn off HDR

The issue might be occurring if HDR is enabled on your device. You can check this in your Windows 11/10 Settings. If you find it enabled, disable it and check if it fixes the issue.

8] Uninstall the Blitz app

Some users have found the Blitz app the culprit of the problem. If you have installed the Blitz app on your system, uninstalling it may help. You can uninstall the Blitz app from the Control Panel or Windows 11/10 Settings.

9] Turn off Discord Overlay

As we have explained previously in this article, one possible cause of this problem is the conflicting third-party applications. It might be possible that the issue is occurring due to the Discord Overlay feature. If this is the case with you, disabling the Discord Overlay will fix the problem.

The steps are listed below:

Launch the Discord app.

Open its Settings.

Scroll down the menus on the left side and select Game Overlay.

Turn off the switch next to Enable in-game Overlay.

10] Disable On-demand Texture Streaming in your Game Settings

Sometimes the On-demand Texture Streaming crashes the Warzone game and causes other errors. If you have enabled this feature, disabling it can fix the issue. The steps to turn off the On-demand Texture Streaming in Warzone are as follows:

Launch the Warzone game.

Open its Settings.

Select the Graphics tab.

11] Run ChkDsk

Run ChkDsk and see if that helps in any way.

To run Check Disk on your System Drive (C), using the command line, type the following and hit Enter:

chkdsk

/f C:

If required, restart your computer.

12] Run Warzone in Administrator Mode

The problem you are currently facing can be triggered due to the unavailability of administrative privileges. So, grant the game all the administrator privileges to fix the issue. To do so, here are the steps you need to follow.

Launch Battle.net and select Call of duty from the list.

13] Change the Installation

Another effective solution to get rid of Disk read error 6.154 is to modify the game installation. The unnecessary installed content can also be the main reason causing the issue. Thus, modify the installation to fix the problem. Here are the steps you need to follow.

From the list of options in the gear icon choose Modify Install.

In the following window, uncheck Campaign, Special Ops, and Survival options.

14] Turn Off Game Mode and Xbox Game Bar

Windows has introduced a dedicated mode by the name, Game Mode to play games. The feature automatically clears all the unnecessary background running applications to enhance the gaming experience. But at the same time, it can cause different problems including the one you are currently facing. Thus, you can try disabling the game mode feature and check if it makes any difference. To do so, here are the steps you need to follow.

Press the Windows + I shortcut key to open the Settings menu.

Tap on the Gaming option present at the left panel of the screen.

Tap on Game Mode, and disable the same in the following window.

15] Uninstall and reinstall the game

If none of the above solutions fixed your issue, uninstalling and reinstalling the game is the last option.

How do I fix the disc read error Warzone on Xbox One?

First, you can try disabling your antivirus or antimalware program and see if it helps. If the error still occurs, there might be third-party software triggering the error. Some users have reported that the error was occurring due to the Blitz app. Uninstalling and reinstalling the Warzone game has fixed the problem of many users. You can also try this.

What causes Disk read error 6.154 on Warzone?

There are multiple reasons causing the Disk read error 6.154 on Warzone. However, among all the most common one is corrupted or outdated drivers. In addition, third-party antivirus programs, the Overlay feature, and Sonic Studio Virtual Mixer can also cause the issue.

Hope this helps.

Read next: Fix Modern Warfare Warzone’s High CPU Usage on PC.

Fix: 0Xc1900200 Error In Windows 10

Fix: 0xc1900200 error in Windows 10

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Try Outbyte Driver Updater to resolve driver issues entirely:

This software will simplify the process by both searching and updating your drivers to prevent various malfunctions and enhance your PC stability. Check all your drivers now in 3 easy steps:

Download Outbyte Driver Updater.

Launch it on your PC to find all the problematic drivers.

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Free upgrade period is coming to an end, and if you want to upgrade to Windows 10 this is your last chance because free upgrade ends on July 29. Unfortunately, Windows 10 upgrade can sometimes encounter problems and one of the most common problems is error 0xc1900200.

How to fix 0xc1900200 error on Windows 10?

Table of contents:

Solution 1 – Use a third-party repairing tool

A simpler way to repair corrupted files and getting rid of system errors is to use a dedicated tool that can do all the work for you. The software will automatically scan your PC for problematic files and act accordingly.

Solution 2 – Disconnect all USB devices

Sometimes you might get a 0xc1900200 error during Windows 10 upgrade if you have your external hard drive connected. External hard drives are extremely useful for file backup, but if you have your external driver connected during the Windows 10 upgrade process you might encounter certain errors, therefore it’s highly recommended that you disconnect it.

Users also reported the same error with a USB Bluetooth receiver for the wireless mouse. According to them, the issue was completely fixed after disconnecting the receiver from the PC. Bear in mind that almost any USB device can cause this error to appear, so be sure to disconnect all the unnecessary USB devices such as your printer, controller, etc. before starting Windows 10 upgrade process.

Solution 3 – Reset the Windows 10 Update components

Another thing you can do if you can’t install the upgrade is resetting the Windows 10 Update components. If you’re not sure which components exactly, just follow these instructions:

net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

Now, you should rename the SoftwareDistribution and Catroot2 folder. Here’s how to do that:

Open the Command Prompt and enter the following commands:

Ren C:WindowssoftwareDistribution SoftwareDistribution.old

Ren C:WindowsSystem32catroot2 Catroot2.old

Now, restart the BITS, Cryptographic, MSI Installer, and Windows Update Services by typing the following commands in Command prompt:

net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

Type Exit in the Command Prompt to close it

Solution 4 – Check if your PC matches the requirements

Windows 10 isn’t a demanding operating system, but in order to upgrade you need to make sure that your PC matches its requirements. If your computer matches the hardware requirements, it quite possible that a certain application, driver, or firmware is preventing the Windows 10 upgrade, so be sure to update your drivers and check if everything is up to date. In addition, make sure that you have the latest Windows updates installed.

Updating drivers is crucial for your system’s stability and safety, and to quickly update all your drivers, we suggest you try this professional driver update software that does it all automatically.

Expert tip:

Solution 5 – Run SFC scan

Now, let’s turn to the troubleshooting tools. If there’s something inside your system that needs tweaking, and therefore prevents you from upgrading it, the SFC scan could be a perfect solution. Here’s how to run the SFC scan:

Open Command Prompt as Administrator.

Type in the following command, and press Enter: sfc/scannow

Wait for the process to finish (it can be lengthy).

Restart your computer

Solution 6 – Whitelist the Windows Update servers

Maybe you’re unable to receive the upgrade because your computer is set to block Microsoft’s update servers. Here’s how to unblock them:

Solution 7 – Run DISM

And the last troubleshooting tool w’re going to try is DISM. DISM is basically same as the SFC scan, but is more powerful, so if the SFC scan didn’t get the job done, chances are, DISM will.

Here’s how to run DISM in Windows 7/8:

Open the Command Prompt  as an administrator.

In the command line, copy-paste these lines one by one and press Enter after each:

DISM /online /Cleanup-Image / ScanHealth

DISM /Online /Cleanup-Image /RestoreHealth

Wait until the procedure ends (it might take up to 10 minutes).

Restart your PC.

Solution 8 – Change the size of the reserved partition Solution 9 – Update your BIOS

Error 0xc1900200 can prevent you from upgrading to Windows 10, and if you’re having this error be sure to try some of our solutions.

READ ALSO:

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What Is /Dev/Null In Linux?

In technical terms, “/dev/null” is a virtual device file. As far as programs are concerned, these are treated just like real files. Utilities can request data from this kind of source, and the operating system feeds them data. But, instead of reading from disk, the operating system generates this data dynamically. An example of such a file is “/dev/zero.”

In this case, however, you will write to a device file. Whatever you write to “/dev/null” is discarded, forgotten, thrown into the void. To understand why this is useful, you must first have a basic understanding of standard output and standard error in Linux or *nix type operating systems.

stdout and stder

A command-line utility can generate two types of output. Standard output is sent to stdout. Errors are sent to stderr.

By default, stdout and stderr are associated with your terminal window (or console). This means that anything sent to stdout and stderr is normally displayed on your screen. But through shell redirections, you can change this behavior. For example, you can redirect stdout to a file. This way, instead of displaying output on the screen, it will be saved to a file for you to read later – or you can redirect stdout to a physical device, say, a digital LED or LCD display.

A full article about pipes and redirections is available if you want to learn more.

Use /dev/null to Get Rid of Output You Don’t Need

Since there are two types of output, standard output and standard error, the first use case is to filter out one type or the other. It’s easier to understand through a practical example. Let’s say you’re looking for a string in “/sys” to find files that refer to power settings.

grep

-r

power

/

sys

/

There will be a lot of files that a regular, non-root user cannot read. This will result in many “Permission denied” errors.

These clutter the output and make it harder to spot the results that you’re looking for. Since “Permission denied” errors are part of stderr, you can redirect them to “/dev/null.”

In other cases, it might be useful to do the reverse: filter out standard output so you can only see errors.

You can redirect both stdout and stderr to two different locations.

Redirect All Output to /dev/null

Sometimes it’s useful to get rid of all output. There are two ways to do this.

What’s important to note here is that the order is important. If you reverse the redirect parameters like this:

Other Examples Where It Can Be Useful to Redirect to /dev/null

Say you want to see how fast your disk can read sequential data. The test is not extremely accurate but accurate enough. You can use dd for this, but dd either outputs to stdout or can be instructed to write to a file. With of=/dev/null you can tell dd to write to this virtual file. You don’t even have to use shell redirections here. if= specifies the location of the input file to be read; of= specifies the name of the output file, where to write.

dd

if

=debian-disk.qcow2

of

=

/

dev

/

null

status

=progress

bs

=1M

iflag

=direct

In some scenarios, you may want to see how fast you can download from a server. But you don’t want to write to your disk unnecessarily. Simply enough, don’t write to a regular file, write to “/dev/null.”

Hopefully, the examples in this article can inspire you to find your own creative ways to use “/dev/null.”

Alexandru Andrei

Fell in love with computers when he was four years old. 27 years later, the passion is still burning, fueling constant learning. Spends most of his time in terminal windows and SSH sessions, managing Linux desktops and servers.

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