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1

Some shells do not accept the double equal sign.
– Dennis Williamson
Commented Feb 25, 2012 at 12:19
1

The question was about bash. I'm using bash. Works well for me. What exactly You are speaking about ?
– Fedir RYKHTIK
Commented Feb 25, 2012 at 13:03
3

If you're using Bash, you should use double square brackets. My previous comment was a simple statement of fact for those who might read your answer and be using a different shell.
– Dennis Williamson
Commented Feb 25, 2012 at 15:49
single square brackets are ok in this case, please see serverfault.com/questions/52034/…
– Luca Borrione
Commented Aug 31, 2012 at 19:21

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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
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

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