Question: How to install Redis on Ubuntu?

Answer

Redis is an in-memory data structure store that is commonly used for caching and real-time data processing. Installing Redis on Ubuntu is a straightforward process, and there are two ways to do it.

Method 1: Installing Redis from the Default Ubuntu Repository

This is the easiest and most convenient way to install Redis on Ubuntu. Here are the steps:

1. Update your system's package list by running the following command:

sudo apt update

2. Install Redis by running the following command:

sudo apt install redis-server

3. Check if Redis is running by running the following command:

sudo systemctl status redis

The output should indicate that Redis is active and running.

Method 2: Installing Redis from Source

This method involves compiling Redis from source code, which can be more complex than installing it from a package manager but gives you more control over the installation process. Here are the steps:

1. Install the build-essential and tcl packages by running the following command:

sudo apt install build-essential tcl

2. Download the latest stable Redis source code from the official website using the following command:

wget http://download.redis.io/redis-stable.tar.gz

3. Extract the downloaded tarball using the following command:

tar xzf redis-stable.tar.gz

4. Navigate into the extracted directory using the following command:

cd redis-stable

5. Compile Redis using the following command:

make

6. Test the compiled Redis binary using the following command:

make test

7. Install Redis using the following command:

sudo make install

8. Configure Redis to start automatically on system boot using the following command:

sudo systemctl enable redis

9. Check if Redis is running by running the following command:

sudo systemctl status redis

The output should indicate that Redis is active and running.

That's it! You should now have Redis up and running on your Ubuntu machine.