Git save snapshot in each commit rather than store the delta

Local operations:

Three states:

modified

modified but not adding to git local database
Working directory

staged

modified and ready to add to git local database
Staging area

commited

data safely stored in local database
Git repository

Git config

you can put git config file in the following places:

• /etc/gitconfig
• ~/.gitconfig
• /.git/config

you can show your git configs by

• git config –list