SHELL

view git username

# show your Git username
git config --list

#an other way
`/.gitconfig

check git username

Just use --local instead of --global. In fact, local is the default so you can just do

git config --local user.email personal@example.org
git config --local user.name "whatf hobbyist"

in one repo, and

git config --local user.email work@example.com
git config --local user.name "whatf at work"

in another