Highlight Bash/shell code in Markdown files

Question

How can I highlight the Bash/shell commands in Markdown files?

---

For example, to highlight js, I write:

Answer 1

Using the knitr package:

```{r, engine='bash', code_block_name} ...

E.g.:

```{r, engine='bash', count_lines}
wc -l en_US.twitter.txt
```

You can also use:

• engine='sh' for shell
• engine='python' for Python
• engine='perl', engine='haskell' and a bunch of other C-like languages and even gawk, AWK, etc.