# Markdown Demo

This is a demo of some of the markdown extensions created for the PingCAP Knowledge Base published to Zendesk.

## Source Code

```{.bash}
echo "this is a shell command"
```

```{.bash .copyable}
echo "this command is copyable"
```

```{.output}
"this command is copyable"
```

## SQL clients

```{.sql .copyable .custom-prompt .prompt-MySQL}
select version();
```

```{.sql .copyable .custom-prompt .prompt-TiDB}
select @@tidb_version\G
```