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create code fences with backticks ` or tildes ~
```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
print(foo)
``` - put returns between paragraphs
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lang-bash
flag=False; if ! $flag ; then ...should give you an error, unless you really have a command calledFalse. (falsewould be standard, however)if [ !$flag ]; thenworks (no space between!and$flag)