In git, referring a commit - what means the expressions M"`
Im' looginkg this guide
And I see they use M^ and M" with grave accecnt (sorry, i don't know how to put it), I could imagine that M^ is a reference to the inmediatly parent, but I don't know what mean M"+grave_accent.
The actual expression is:
`"diff M^..M"`
The `` (backticks) are not important (code fence) and the " is not part of the diff command.
The true expression is:
git diff M^..M
Meaning "compare the parent of M with M, as explained in "Show diff between commits".