SHELL

show all remote branches git

git branch -r

get all remote branches

git fetch --all

get all branches from remote

You can fetch all branches from all remotes like this:
git fetch --all

list remote branches git

git branch -r
# If this doesn't work for you, try
git ls-remote --heads <remote-name>

show all remote branches git

git remote show <remote-name>

bash script to get all git branches from remote

git for-each-ref --shell 
  --format='git log --oneline %(refname) ^origin/master' 
  refs/heads/

git list all remote branches created by me

git for-each-ref --format=' %(authorname) %09 %(refname)' --sort=authorname 

show all remote branches git

git ls-remote --heads <remote-name>