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Thank you. I found new points about sed in your answer. But main purpose of using a such difficult pattern is to prevent the unexpected evaluation of '$(...)' and to avoid problems with escaping of non-command part of the line (it can contain quotas, for example).

Cyrill
– Cyrill

2019-08-29 18:44:33 +00:00
Commented Aug 29, 2019 at 18:44

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

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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