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How to uninstall software using the command line in linux

There are different ways to remove apps and programs, so if you can’t find the one you’re looking for, you can try another location. Note that some apps and programs are built into Windows and can’t be uninstalled. You can try to repair a program first, if it’s just not running correctly.

Uninstall from the Start menu

Select Start and look for the app or program in the list shown.

Press and hold (or right-click) on the app, then select Uninstall.

Uninstall from the Settings page

Select Start , then select Settings > Apps > Apps & features. Or just click the shortcut link at the bottom of this article.

Select the app you want to remove, and then select Uninstall.

Uninstall from the Control Panel (for programs)

In the search box on the taskbar, type Control Panel and select it from the results.

Select Programs > Programs and Features.

Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall/ Change. Then follow the directions on the screen.

If you get an error message when you’re uninstalling, try the Program Install and Uninstall Troubleshooter.

If you’re trying to remove malware, see Stay protected with Windows Security to find out how to run a scan. Or if you use another antivirus software program, check their virus protection options.

How to uninstall software using the command line in linux

If a program is no longer used, or additional space is required, it may be necessary to uninstall or delete software from your computer. The following sections contain several methods for uninstalling programs from a computer running Microsoft Windows, and the pros and cons of each method. To proceed, read through all the options or select one from the list below.

  • Install and Uninstall option
  • Unwise wizard
  • Third-party software
  • Manually delete

Install and Uninstall option

Pro: Removes all or the majority of all files copied to the computer during installation.
Con: Not all programs support or use this feature.

  1. Open the Control Panel or press the Windows key , type Control Panel, and then press Enter .
  2. Under the Programs section, click the Uninstall a program link.

How to uninstall software using the command line in linux

  1. In the new window, select the program you want to uninstall and click the Change, Remove, or Uninstall button.

  1. When prompted, click the button.

How do I know what to delete?

If you don’t know what it is, we suggest it not be removed or ask someone who knows before proceeding.

If the program or game is not listed, continue reading this page for alternative methods to uninstalling software.

Unwise wizard

Pro: Created by a program’s developer and allows for the deletion of any files that were originally installed.
Con: May cause errors as it can delete files currently used by other programs.

  1. Click Start.
  2. Open the Programs folder under Programs or All Programs.
  3. In the folder, look for an Unwise or Uninstall shortcut.
  4. Click the shortcut to begin the uninstallation process.
  1. Open Windows Explorer.
  2. In Explorer, open the folder containing the program you want to uninstall. If you’re not sure where the folder is located, a good place to check first is the Program Files folder.
  • Why do I have two Program Files folders?
  1. Once the folder is opened, look for an Unwise or Uninstall shortcut link or executable file.

Do not search for unwise.exe since it’s likely several of these files exist on your computer and may be associated with other programs.

If the program or game does not have this option, continue reading this page for alternative methods to uninstalling software.

Third-party software

Pro: Removes files and registry settings associated with the program, which manually deleting the program does not.
Con: May not remove everything since it’s third-party and not developer created.

There are various commercial and free solutions available for uninstalling software on your computer. We highly recommend Revo Uninstaller, a free and easy to use program and junk file utility.

Manually delete

Pro: Manually deleting software from a computer helps save space when no other options are available.
Con: May cause additional errors if the operating system or other programs require files that are deleted.

Before manually deleting any software from the computer, we recommend you do each of the suggestions below.

  1. Empty your Recycle Bin; that way, any files deleted can be restored from there.
  2. Back up all important data.

Once you are ready, follow the steps below to manually delete the files.

  1. Open Windows Explorer.
  2. Highlight the program folder. Make sure you’re not highlighting its containing folder instead. For instance, make sure not to highlight your Program Files folder.
  3. Press the Del on the keyboard to delete the files.
  4. After deleting the program, restart the computer to verify no errors occur.

If an error occurs, restore the files from the Recycle Bin.

Linux uninstall package / software

  1. First, you need to find a list of all installed packages on Linux.
  2. To uninstall an application, you need to use Linux distro-specific command. For example, use the apt command on Debian or Ubuntu Linux. RHEL/CentOS/Fedora Linux users need to run either the dnf or yum command and so on.
  3. Finally, we can use various commands for verification of the uninstallation of a program on Linux.

Let us see all commands in action to uninstall a program on Linux.

Ubuntu/Debian Linux uninstall software

The syntax is as follows to list all installed packages on Debian or Ubuntu Linux using the apt command:
apt list –installed

How to find out exact package names in Debian/Ubuntu/Mint Linux

Use the ‘ dpkg –list ‘ command to get a list of all installed packages on an Ubuntu or Debian/Mint Linux

grep command in action to filter out package names quickly that you want to uninstall

RHEL/CentOS/Oracle Linux

We need to use the yum command for CentOS/RHEL v6.x/7.x. First get a list, run:
sudo yum list installed
sudo yum list installed | grep package
sudo yum list installed | grep zip

yum command in action

Fedora Linux

Again, we need to the dnf command as follows:
## List all installed packages ##
sudo dnf list installed
## Filter out the package named httpd ##
sudo dnf list installed | grep httpd
## Delete the httpd ##
sudo dnf remove httpd

Arch Linux

We use the pacman command on Arch Linux to uninstall software. Pass the Q to list all installed packages on Arch Linux:
sudo pacman Q
sudo pacman Q | more
sudo pacman Q | grep sl
To delete/remove the sl package in Arch, run:
sudo pacman -R sl

pacman command in action to list and uninstall package on an Arch Linux

OpenSUSE or SUSE Linux removing package command

We are going to use the zypper command. To list all installed packages in SUSE/OpenSUSE, run:
sudo zypper packages –installed-only
sudo zypper packages –installed-only | grep -i package
sudo zypper packages –installed-only | grep -i zip
I am going to remove the zip package, enter:
sudo zypper remove package
sudo zypper remove zip

Alpine Linux

Use the apk command to list installed packages only:
sudo apk list
sudo apk list -I
sudo apk list -I ‘package’
sudo apk list -I ‘zip’
To uninstall the zip Linux uninstall software pass the del as follows:
sudo apk del pkg
sudo apk del zip

apk command in action

Conclusion

You learned how to uninstall package on popular Linux distros. I would strongly recommend reading the man pages:
man yum
man dnf
man apt
man zypper
man pacman

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Lori Kaufman is a technology expert with 25 years of experience. She’s been a senior technical writer, worked as a programmer, and has even run her own multi-location business. Read more.

How to uninstall software using the command line in linux

Linux provides different methods for installing software. You can install software from the standard Ubuntu software repositories using the Ubuntu Software Center, from outside of the standard Ubuntu software repositories, or by compiling source code. However, what if you need to uninstall a program?

If you’ve installed software from the Ubuntu software repositories using the Ubuntu Software Center, you can use the Ubuntu Software Center to uninstall that software as well. However, if you’re more comfortable using the command line, we’ll show you an easy way to see what’s installed on your system and uninstall programs.

If you have an idea of what you want to uninstall, but you don’t know the exact name, see our article about finding out exact package names in Linux. You can also use the “dpkg” command to see a list of all installed packages on your computer, press “Ctrl + Alt + T” to open a Terminal window. Type the following command at the prompt and press “Enter”.

NOTE: There are two dashes before “list”.

How to uninstall software using the command line in linux

Scroll through the list of installed packages in the Terminal window to find the one you want to uninstall. Note the full name of the package.

How to uninstall software using the command line in linux

To uninstall a program, use the “apt-get” command, which is the general command for installing programs and manipulating installed programs. For example, the following command uninstalls gimp and deletes all the configuration files, using the “ — purge” (there are two dashes before “purge”) command.

sudo apt-get — purge remove gimp

Enter your password when prompted and press “Enter”.

NOTE: The password does not display as you type it. However, you can choose to display asterisks as you type the password.

The uninstallation process begins and a summary of the actions to be taken displays. When asked if you want to continue, type a “y” and press “Enter”.

How to uninstall software using the command line in linux

The installation process continues. When it’s done, type “exit” at the prompt and press “Enter” to close the Terminal window, or click the “X” button in the upper-left corner of the window.

How to uninstall software using the command line in linux

If you don’t want to remove the configuration files, simply leave out the “ — purge” command, as shown in the following command.

As discussed in this article, programs installed in Linux depend on other packages to function. When you uninstall a program, there may be packages that the uninstalled program depended upon that are no longer used. To remove any unused packages, use the “autoremove” command, as shown in the following command.

You can combine the two commands for removing a program and removing dependencies that are no longer being used into one, as shown below (again, two dashes before “auto-remove”).

sudo apt-get purge — auto-remove gimp

If you’re short on space, you can use the “clean” command to remove downloaded archive files, as shown below.

This command removes the aptitude cache in “/var/cache/apt/archives”. When you install a program, the package file is downloaded and stored in that directory. You don’t need to keep the files in that directory. However, the only drawback of deleting them, is that if you decide to install any of those programs again, the packages would have to be downloaded again.

The “apt-get” is a handy tool that makes downloading, installing, and uninstalling programs quick and easy. For more information about using the “apt-get” command, type “apt-get” at the prompt and press “Enter”.

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There are many different methods for installing the software using the Linux. Linux gives us options that software can be installed using various methods. The software can be installed from Standardized Ubuntu Software Repositories by using Software Center, or it can be installed from outside the of the Software Repositories or it can be done by source code compilation. These all are the methods for the installation of the software program. But, what if someone need to uninstall a program from the Linux?How to uninstall software using the command line in linux

If using the Ubuntu Software Center any of the users has installed the software from Ubuntu software repositories, the same software center can also be used for the uninstallation of the software, as well. But if you feel yourself at ease using the command line interface. There is an easy way to see the things which are installed on your computer and how to uninstall them.

If the packages on your computer are unknown and you want to know about all of the packages which are installed on your system, type ‘dpkg’ as a command and to open the terminal window press ‘Ctrl+Alt+T’. The following command should be typed on the prompt and press ‘Enter’.

dpkg –list (There are two dashes before the word list)

A list of the installed packages will be displayed. Using the terminal window system will display a list of all installed packages through which you can scroll easily and find out the thing which you want to uninstall. Note the full name of the installed package.

For the program uninstallation, use “apt-get” command which is a well-known command for the installation and manipulation of the installed program. For instance, the command which is used to uninstall the gimp and for the deletion of all the configuration files is “–purge” (there must be two dashed before the command ‘purge’).

sudo apt-get –purge remove gimp

Screen will prompt for the password, enter password and press “Enter”.

The password will not be displayed as you typed it, but for convenience you can choose the display to print asterisks as you type password.

The uninstallation of the program will begin and will display summary of all the actions displayed. If the screen display asking, do you want to continue press ‘Y’ or press ‘Enter’.

Installation program will be continued. When its complete type the command ‘Exit’ and press ‘Enter’ again to close the window or on the upper left corner a button is displayed showing ‘x’, press this button.

If you are not required to delete the configuration files, you need to simply remove then use command “–purge ”.

Sudo apt-get remove gimp

For uninstallation of the program, uninstalled program may depend upon the package, which are no longer in use. For the removal of any unused package use the command “autoremove”

sudo apt-get autoremove

removal of the program along with the dependencies can be combined using one command

sudo apt-get purge –auto-remove gimp

At some point, you will have to remove programs from your Linux Mint. In this post, you will learn 4 different ways to uninstall software in Linux Mint.

INTRODUCTION

Usually, in Linux, there are always several ways to do one thing. For example, to install/uninstall an application, some prefer the use of the terminal, while others stick to a software manager.

It also happens there several ways to uninstall software in Linux Mint. I will show you 4 ways to do that and you will be able to pick your favorite.

  1. The simplest way is to right-click on an application in the main menu.
  2. You can uninstall an application using the software manager.
  3. If you use Synaptic, you can also do it from there.
  4. Finally, you can always go conservative and use the Linux Mint terminal.

The first two options are clearly focused on the novice user, while the last two are for more advanced users. So, let us start.

VIDEO TUTORIAL

1. Using the right-click in the menu

This is the easiest way to uninstall software in Linux Mint. This method is intended for novices and it is the simplest way. I must confess that I have been using Linux Mint for years and I did not know about this feature.

So, you have to open the Linux Mint menu and look for a program you want to uninstall. I will be uninstalling GIMP image editor as an example. You right-click on the program and you will see the option to uninstall it.

After that, you have to type your user password. Then, you need to confirm that you want to uninstall the software. After this, the program will be removed from your system.

As you can see, you can uninstall software in Linux Mint can be really quick.

By the way, if you liked this Linux Mint icons, you can read how to install them in these Linux Mint icons and themes post.

2. Using the Software Manager

The second way to uninstall software in Linux Mint is through the Software Manager. So, you open Linux Mint Software Manager.

Then, search for the program you want to uninstall. Again, I will use GIMP here.

Finally, click on the Remove button and it will start the uninstall process.

As you can see, this way requires more steps than the previous one, but it may be useful if you are testing different programs and you need to remove a program without leaving the Software Manager.

3. Using Synaptic package manager

Similarly to the previous way, you can uninstall programs on Linux Mint is by using the Synaptic package manager. Synaptic is also a software manager but it is a bit more advanced than the Linux Mint Software Manager.

So, open Synaptic from the main menu.

Next, in the search field, type the name of the program you want to remove. Again, in this case, I will remove GIMP. Select the package and right-click on it.

Here, you have two options to uninstall it:

  1. Mark for Removal
  2. Mark for Complete Removal

Mark for Removal will just remove a program. Basically, it will do the same what has been done through the Linux Mint menu and through the Software Manager. The second option, Mark for Complete Removal, in addition to removing the program, will also remove all the configuration files in your /etc directory. So, this way you can keep your system clean.

Note that this uninstall does not remove the configuration files from your home directory. If you want to completely get rid of all files associated with a program, you need to remove its config files from your home directory manually. To find these files, unable “Show hidden files” in the view menu of your file manager and search for folders with the program name you want to remove. Usually, they are located right in your home or in

So, for complete removal, choose the Complete removal option and click on the Apply button.

Synaptic will show you a summary of what is going to be done. In my example, you can see many programs will be unchanged and only GIMP will be removed. After you click apply, GIMP will be uninstalled.

4. Using the terminal

Similarly to Synaptic way shown above, you have two options to remove software in Linux Mint using the terminal. Moreover, as you will see below, you can also remove orphan packages using the terminal.

Standard way

So, the most common and standard way is with this command:

And this will be equivalent to the simple remove option in Synaptic. That is it will remove the package but not its configuration files in /etc .

Completely remove (advanced)

However, if you want to completely remove the program you can use the command purge instead of remove .

And this will be equivalent to the Complete Removal in Synaptic – it will remove the package and the configuration files located in /etc .

Both the purge and remove commands will show you a summary of what is going to be removed. Read it carefully and confirm if you agree to remove listed packages. Be careful here because sometime purge may remove important programs as dependencies.

Remove orphan packages

Finally, using the terminal, you can also remove orphan packages using the following command.

And if you want to remove the GIMP configuration files from your home directory, you can also remove them from the command line.

Now all GIMP files are removed.

As you can see the command line way is even more advanced because you are given more flexibility and more options here. For example, we did not see any autoremove option before when we tried to remove through the Linux Mint menu, through the Software Manager, and in the Synaptic package manager.

Conclusion

In Linux, there are always different ways to do the same thing and it is nice because each of these options fits certain users. The different ways to uninstall software in Linux Mint proves it. Some are ideal for newbies whereas others are better for more powerful users.

If you know more ways to uninstall programs on Linux Mint, please leave a comment below.

If you liked this Linux Mint there, you can find how to configure it in this Linux Mint themes post. There are also a list of thing you can do after installing Linux Mint.

Home » DevOps and Development » How to Uninstall or Remove Software Packages From Ubuntu

This tutorial will walk you through several methods for removing software packages from an Ubuntu Linux system. We detail removal options using the GUI (graphical user interface) built in to the Ubuntu Software Center and using the command line.

How to uninstall software using the command line in linux

  • A user account with sudo / administrative privileges to install/uninstall software from Ubuntu
  • Access to a terminal window/command line (Ctrl+Alt+T) – optional

7 Ways to Uninstall Ubuntu Packages

Remove With Ubuntu Software Manager

If you run Ubuntu with the default graphical interface, you may be familiar with the default software manager. This graphical tool gives a list of available and installed programs. Launch it by clicking the Ubuntu Software Center icon.

Once the utility loads, there are three tabs across the top:

  • All – This lists all available software. You can search this list for new programs to add.
  • Installed – This lists only the programs you have installed.
  • Updates – This lists any programs that have available updates. You can find more information about the updates from here.

Click the Installed tab. Scroll down the list of programs, then click the Remove button next to the program to uninstall.

How to uninstall software using the command line in linux

Use the Synaptic Package Manager

The default Ubuntu Software Center may not display every application on your system. The Synaptic Package Manager is a more robust application. The Synaptic Package Manager is included by default in some versions of Ubuntu. Use the search bar to find and launch it on your system.

If your system does not include Synaptic Package Manager, use the Ubuntu Software Center to install it.

Once the Synaptic Package Manager loads, use the menu on the left to select Status > Installed. This lists all applications on your system.

To remove an application, highlight it > right-click > select Mark for Removal and then click Apply. This will uninstall the software, but leave the configuration files intact.

To delete the standard configuration files along with the software package, select Mark for Complete Removal instead.

How to uninstall software using the command line in linux

How to Remove Package on Ubuntu From Command Line

Dpkg (Debian Package) is a standard package manager in many versions of Linux. To uninstall a package with the dpkg command, you need to know the exact name of the package you intend to uninstall.

To list installed packages enter the following into a terminal window:

This command lists all the software, but the list may be too long and not helpful.

To make a list easier to browse add the following:

If you know the name of the package you want to remove, you can search for it instead:

Replace package_name with the term you are searching for.

If you don’t know the full name, specify part of a name by surrounding it with asterisks (*), as follows:

We suggest copying the exact software package name (right click and copy) for use later on in the removal process.

Note: Using dpkg to remove software packages is not recommended. The recommended option is to use a package manager that will remove all dependencies. For example, dpkg may remove the specified package, but all of its dependencies will remain on the system and may no longer function correctly.

Apt-Get Remove Command

To remove a specific package, use the apt-get remove command:

This command prompts apt to scan through the installed applications and attempt to remove or repair any that are broken.

Apt-Get Purge Command

Replace package_name with the actual package name generated by apt or dpkg.

The remove command only deletes the software, not the configuration files.

To remove the program and config files, use the purge command:

Clean Command

The apt package manager can also clean up your system.

To delete the cache of old/outdated packages, enter:

Some programs are installed with dependencies. These are other software packages the program needs to run. It’s possible to uninstall an application, and still have all its dependencies on your system.

This command prompts apt to scan through the installed applications and attempt to remove or repair any that are broken.

AutoRemove Command

The apt package manager can remove orphaned or unnecessary dependencies with autoremove :

If you have any failed installations, broken dependencies, or corrupted package files, apt can try to repair them with the command:

This command prompts apt to scan through the installed applications and attempt to remove or repair any that are broken.

Now you should have a good understanding of several ways to find and remove packages on Ubuntu Linux.

How to uninstall software using the command line in linux

This article describes removing software from your Ubuntu system that you do not need anymore. We are describing software removal both through the graphical user interface (Ubuntu Software Manager) and the command line-the (Terminal).

Please note that you need administrative privileges in order to install/uninstall software from Ubuntu.

We have run the commands and procedures mentioned in this article on Ubuntu 20.04 LTS.

Uninstall Applications Through Ubuntu Software Manager

One way to uninstall software from your computer is through the Ubuntu Software Manager. Click on the Ubuntu Software icon in the Activities toolbar; this will open the Ubuntu Software manager through which you can search for, install and uninstall software from your computer.

Then click the Installed tab from the following view to list all the applications installed on your Ubuntu system:

How to uninstall software using the command line in linux

From the list of applications, look up for the one you want to uninstall and then click the Remove button against it.

How to uninstall software using the command line in linux

In this example, I am removing a software called XCFA from my system by clicking the Remove button against it. When you try to remove an application, the following type of confirmation message appears:

Click the Remove button when you are sure that you want to remove the selected application. When you do so, the following authentication dialog will appear as only an authorized user can remove an application from Ubuntu:

How to uninstall software using the command line in linux

Enter the password for Administrator or a sudo user and then click the Authenticate button.

The selected software will now be removed from your system.

Uninstall Applications Through the Command Line

You can remove installed software from your system through apt-get remove and apt-get purge commands as sudo. But first, you need to know the exact package name through which you installed the software.

The following command will list all the packages installed on your system:

You may want to copy the exact package name; select it, right click and then copy it from the dpkg list for further use.

Use apt-get remove command

The apt-get remove command removes a software from your system but keeps the configuration files and any plugins and settings that you might have installed later. This helps in keeping the same settings when you want to reinstall the software.

Run the following command as sudo in order to remove a software;

You will be asked the password for sudo and given the information about what will be removed from your system.

In this example, I will be removing the OpenJDK package named “openjdk-11-jdk” from my system.

How to uninstall software using the command line in linux

The system will also prompt with a y/n option in order to re-confirm the uninstall procedure. When you click Y, the process will begin and the software will be removed from your system.

Use apt-get purge command

If you want to remove an application completely from your system, also removing any personalized settings, it is best to use the apt-get purge command.

In this example, I will be removing the OpenJDK package named “openjdk-11-jdk:amd64” from my system.

Run the following command as sudo in order to remove a software;

You will be asked the password for sudo and given the information about what will be removed from your system.

How to uninstall software using the command line in linux

The system will also prompt with a y/n option in order to re-confirm the uninstall procedure. When you click Y, the process will begin and the software will be removed from your system.

Bonus: Cleanup the Mess with autoremove

In case you want to remove any dependencies such as the applications and libraries used by the software you once installed that is no longer in use, you can do some housekeeping through the following command:

This will list all the obsolete and unused packaged and left over dependencies taking up important space on your system.

How to uninstall software using the command line in linux

The system will also prompt with a y/n option in order to re-confirm the uninstall procedure. When you click Y, the process will begin and the unwanted software dependencies will be removed from your system.

You have learned two ways to uninstall software from your Ubuntu system; through the Ubuntu Software manager and through the command line. Through the command line, you can opt either to remove the software and keep all the configuration files (apt get remove) or completely remove the software (apt-get purge).

  • ← 6 Ways to generate a secure password on Debian
  • How to Shut Down Ubuntu →

Karim Buzdar

About the Author: Karim Buzdar holds a degree in telecommunication engineering and holds several sysadmin certifications. As an IT engineer and technical author, he writes for various web sites. You can reach Karim on LinkedIn

Home » SysAdmin » How to Uninstall or Remove Packages from CentOS

Uncesscerary packages slow down system performance and take up storage space. If specific software isn’t being used, then it’s best to remove it, and doing so is easy.

In this tutorial, learn how to remove packages and uninstall dependencies from CentOS 7.

How to uninstall software using the command line in linux

  • Access to a user account with sudo or root privileges
  • A terminal window or command line (Ctrl+Alt+F2)
  • The YUM and RPM package managers, included by default

Uninstall Package from CentOS with Yum

CentOS is an RHEL (Red Hat Enterprise Linux) distribution. Users rely on the RPM (Red-hat Package Manager) and YUM (The Yellowdog Updater, Modified) package manager.

To remove a package from CentOS, use the following yum commands:

In the following example, we deleted the Apache web server package, filed under the name httpd.x86_64, using the yum command.

Before removing, the command prompt asks for the root (or sudo user) password, and confirmation that you want the software deleted.

Type in y (for yes) and press Enter. If you have changed your mind, press n (for no) and then Enter.

Finally, the output informs you that the process is complete and shows you which package has been deleted.

How to uninstall software using the command line in linux

Note: Only root users and users added to the sudousers group have permission to install and remove packages in CentOS.

How to Remove Packages with Dependencies Using Yum

Package dependencies are binaries, libraries, and modules on which software rely on. When installing software, it will automatically download and store the required dependencies.

In most cases, deleting software from the local package manager will also erase its dependencies (unless other programs require them).

Still, there are instances in which these dependencies have to be removed manually.

To remove a package and erase all the unneeded dependencies use the following command:

Alternatively, you can alter the yum configuration file to automatically remove package dependencies when deleting a package with the yum remove or yum erase commands.

Start by opening the yum.conf file with a text editor of your choice:

Then, add the following line to the file:

How to uninstall software using the command line in linux

Save and exit the file.

How to Find Specific File in CentOS

In case you need to delete a package but are unsure of its exact file name, you can use one of the following two commands:

The output will list all installed packages with the specified phrase found in the file name.

As you can see in the image below, httpd appears in the following packages (and dependencies):

How to uninstall software using the command line in linux

After you have the exact name of the package you want to erase, you can uninstall it from your CentOS system.

For more options on listing packages on CentOS read our detailed tutorial.

After reading this tutorial, you should now know how to remove packages and dependencies to free up space taken up by redundant programs.

You also know how quickly find specific packages or files you want to delete.