output.txt

#This is the default log command
#The command listing out all the commit log. 
#The log information contains commit ID, Author and date.
git log
#The below command will print each logs in a single line
git log --oneline
#The below command will prints files which modified on each commit
git log --stat
#The below command prints logs including each changes in the file
git log --patch
or
git log -p
#The below command enable to print the git log as a graph
git log --graph --oneline