To view the commit history of a git repository, use the git log command.

git log

Options can be added to the git log command to customize the output.

Shows the difference introduced in each commit.

git log --patch

 
Gives some abbreviated stats for each commit.

git log --stat 

Lists the commits made in the last four days.

git log --since=4.days

Prints each commit on a single line.

git log --oneline