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How to Format
- 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
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-fexpects a file name (and that file has to be a regular file as ssh-keygen opens and reads the file several times)while read line; do echo "$line" > key.pub; ssh-keygen -lf key.pub ; rm key.pub; done < <(cat authorised_keys)