Question: Where is Memcached installed on Ubuntu?

Answer

On Ubuntu, Memcached can be installed from the official repositories using apt package manager. The default installation location for Memcached is /usr/bin/memcached.

To verify if Memcached is installed on your Ubuntu system, you can use the following command in your terminal:

```
which memcached
```

If Memcached is installed, this command will return the path to the binary file, which should be /usr/bin/memcached.

You can also check the version of the installed Memcached server by running the command:

```
memcached -h | head -n1
```

This will output the version number of Memcached installed on your system.

In case Memcached is not installed on your Ubuntu system, you can install it using the following command:

```
sudo apt-get update
sudo apt-get install memcached
```

Once the installation is complete, you can start the Memcached service using the following command:

```
sudo systemctl start memcached
```

And enable it to start at boot time with:

```
sudo systemctl enable memcached
```

With these commands, you should have Memcached up and running on your Ubuntu system.