git log > commits.txt

git log --before="2019-2-23" --pretty=format:'"%h","%an","%ae","%aD","%s",' --shortstat --no-merges | paste - - - > log.txt

git log --pretty=format:"%ad - %an: %s" --after="2021-01-01" --until="2021-06-30" > git_log.txt

You can make log report more clearly, by

(1) setting number of latest commits (for example, in below command, we get latest 50 commits, you can change it to 100, 500, etc.)

(2) display long commit in one line This command is display commit log in current branch:

git log --oneline -50 > log50_latest_commits.txt

(3) If you want display commit at all branch

git log --all --oneline -50 > log50_latest_commits.txt

Generated text file will stand at the current directory.

Reference: https://git-scm.com/docs/git-log