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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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`like _so_` - quote by placing > at start of line
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grep -f myfifo numbers.txt, as in my answer.grep -f myfifo numbers.txtcommand not printing any output to stdout.