What does git pull 2>&1 do?

Question

git

Good afternoon.
There is a question, what does the git pull 2>&1 command actually do
. There is no doubt about git pull pumping out changes.
I was told that 2>&1 is stderr and stdout, but I can’t understand what this has to do with git.

Answer 1

STDERR is redirected to STDOUT. Apparently, so that some theoretical errors were visible in the console with a pool.

Answer 2

this has nothing to do with git specifically, but with console commands in general
http://stackoverflow.com/questions/818255/in-the-shell-what-is-21

Answer 3

man bash
section pipe

Answer 4

Outputs STDERR to STDOUT, indeed. This is necessary in order, for example, to grep "two" pipes at once.