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## Basics
Install [Docker](https://www.docker.com/), by following the instructions relevant
to your OS / distribution, and start the service.
### Search an image on [DockerHub](https://hub.docker.com/)
```bash
$ docker search debian
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Ubuntu is a Debian-based Linux operating s... 2065 [OK]
debian Debian is a Linux distribution that's comp... 603 [OK]
google/debian 47 [OK]
```
### Show available tags for a repository
```bash
$ curl https://index.docker.io/v1/repositories/debian/tags | python -m json.tool
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 1283 0 1283 0 0 433 0 --:--:-- 0:00:02 --:--:-- 433
```
Sample output:
```json
[
{
"layer": "85a02782",
"name": "stretch"
},
{
"layer": "59abecbc",
"name": "testing"
},
{
"layer": "bf0fd686",
"name": "unstable"
},
{
"layer": "60c52dbe",
"name": "wheezy"
},
{
"layer": "c5b806fe",
"name": "wheezy-backports"
}
]
```
### Pull an image from DockerHub
```bash
$ docker pull repository[:tag]
$ docker pull debian:wheezy
wheezy: Pulling from debian
4c8cbfd2973e: Pull complete
60c52dbe9d91: Pull complete
Digest: sha256:c584131da2ac1948aa3e66468a4424b6aea2f33acba7cec0b631bdb56254c4fe
Status: Downloaded newer image for debian:wheezy
```
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