Personal Reference
I find myself searching for the same bits of documentation again and again. This page is a collection of the things I find myself looking up most often.
Python
f-strings
Comprehensions
Nested comprehensions
[
item
for inner in outer
for item in inner
]
Special methods
Bash
Escape single quotes
Since Bash 2.04 some escapes are allowed in $ strings.
> echo $'foo \'bar\' foo'
foo 'bar' foo