Installing, updating, removing packages in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to install the package named 'curl' using apt.

Linux CLI

sudo apt [1] curl

Drag options to blanks, or click blank then click option'

Aupgrade

Bremove

Cupdate

Dinstall

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'remove' instead of 'install' will uninstall packages.

Using 'update' only refreshes package lists, not install packages.

The install command is used with apt to add new packages like curl.

2fill in blank

medium

Complete the command to update the package list on a Debian-based system.

Linux CLI

sudo apt [1]

Drag options to blanks, or click blank then click option'

Aupgrade

Binstall

Cupdate

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'upgrade' will try to install new versions, not update the list.

Using 'install' or 'remove' changes packages, not update the list.

The update command refreshes the list of available packages and their versions.

3fill in blank

hard

Fix the error in the command to remove the package 'nano' using apt.

Linux CLI

sudo apt [1] nano

Drag options to blanks, or click blank then click option'

Aremove

Binstall

Cupdate

Dupgrade

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'install' will add the package instead of removing it.

Using 'update' or 'upgrade' does not remove packages.

The remove command deletes the specified package, here nano.

4fill in blank

hard

Fill both blanks to upgrade all packages after updating the package list.

Linux CLI

sudo apt [1] && sudo apt [2]

Drag options to blanks, or click blank then click option'

Aupdate

Bupgrade

Cinstall

Dremove

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the commands will cause errors or no updates.

Using 'install' or 'remove' in either blank is incorrect here.

First, update refreshes the package list, then upgrade installs the latest versions of packages.

5fill in blank

hard

Fill all three blanks to install 'git', update the package list, and then remove 'vim'.

Linux CLI

sudo apt [1] git && sudo apt [2] && sudo apt [3] vim

Drag options to blanks, or click blank then click option'

Ainstall

Bupdate

Cremove

Dupgrade

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up 'upgrade' with 'update' or 'remove' causes wrong actions.

Using 'install' to remove packages is incorrect.

The commands are: install to add git, update to refresh package info, and remove to uninstall vim.

Practice

1. Which command is used to install a new package on a Debian-based Linux system?

easy

A. apt upgrade package_name

B. apt update package_name

C. apt remove package_name

D. apt install package_name

Solution

1. Step 1: Understand the purpose of apt install

   The apt install command is used to add new software packages to the system.

2. Step 2: Differentiate from other commands

   apt update refreshes package lists, apt upgrade updates installed packages, and apt remove deletes packages.

3. Final Answer:

   apt install package_name -> Option D

4. Quick Check:

   Install new software = apt install [OK]

Hint: Install packages with 'apt install' command [OK]

Common Mistakes:

• Confusing 'apt update' with installation
• Using 'apt remove' to install packages
• Trying 'apt upgrade' to add new software

2. Which of the following is the correct syntax to update the package list on a Debian-based system?

easy

A. apt update

B. apt install update

C. apt upgrade

D. apt remove update

Solution

1. Step 1: Identify the command to refresh package lists

   apt update downloads the latest package information from repositories.

2. Step 2: Understand other commands

   apt upgrade installs available updates, not refreshes lists; others are invalid.

3. Final Answer:

   apt update -> Option A

4. Quick Check:

   Refresh package list = apt update [OK]

Hint: Use 'apt update' to refresh package info before upgrades [OK]

Common Mistakes:

• Using 'apt upgrade' to update package lists
• Adding package names to 'apt update'
• Confusing 'apt remove' with update commands

3. What will be the output of the following commands sequence?

sudo apt update
sudo apt upgrade -y

medium

A. The system installs new packages listed in the upgrade command.

B. The system refreshes package lists and upgrades all upgradable packages automatically.

C. The system removes all outdated packages without confirmation.

D. The system only updates package lists but does not upgrade any packages.

Solution

1. Step 1: Analyze sudo apt update

   This command refreshes the package lists from repositories to get the latest versions.

2. Step 2: Analyze sudo apt upgrade -y

   This command upgrades all installed packages that have updates available, and the -y flag confirms automatically.

3. Final Answer:

   The system refreshes package lists and upgrades all upgradable packages automatically. -> Option B

4. Quick Check:

   Update + upgrade -y = refresh and auto-upgrade [OK]

Hint: Update lists then upgrade with -y to auto-confirm [OK]

Common Mistakes:

• Thinking upgrade installs new packages
• Assuming remove happens automatically
• Believing update upgrades packages

4. You run apt remove package_name but get an error saying the package is not installed. What is the likely cause?

medium

A. The package is already removed but still listed in the system.

B. You need to run apt update before removing packages.

C. The package name is misspelled or does not exist on the system.

D. You must use apt upgrade before removing packages.

Solution

1. Step 1: Understand the error context

   If apt remove says the package is not installed, it means the system cannot find that package installed.

2. Step 2: Identify common causes

   Most often, this happens because the package name is wrong or the package was never installed.

3. Final Answer:

   The package name is misspelled or does not exist on the system. -> Option C

4. Quick Check:

   Remove error = wrong or missing package name [OK]

Hint: Check package name spelling before removing [OK]

Common Mistakes:

• Trying to update before removing
• Assuming upgrade is needed before remove
• Ignoring error and forcing removal

5. You want to write a script that updates the package list, upgrades all packages, and then removes a package named oldapp. Which sequence of commands is correct?

hard

A. apt update
apt upgrade -y
apt remove oldapp -y

B. apt upgrade -y
apt update
apt remove oldapp -y

C. apt remove oldapp -y
apt update
apt upgrade -y

D. apt update
apt remove oldapp -y
apt upgrade -y

Solution

1. Step 1: Understand the correct order of package management commands

   First, update the package list with apt update to get latest info, then upgrade installed packages with apt upgrade -y, and finally remove unwanted packages.

2. Step 2: Check each option's order

   apt update
   apt upgrade -y
   apt remove oldapp -y

   follows the correct order: update, upgrade, then remove. Others have wrong sequences that may cause errors or outdated upgrades.

3. Final Answer:

   apt update apt upgrade -y apt remove oldapp -y -> Option A

4. Quick Check:

   Update -> Upgrade -> Remove sequence [OK]

Hint: Always update before upgrade, remove last [OK]

Common Mistakes:

• Upgrading before updating package lists
• Removing packages before upgrading
• Skipping update before upgrade