What is the difference between the -c and -C options for git commit?

The command "git diff", without any additional arguments, shows...

What is the git diff option used to output the shortened diffs for a file foo.txt ?

Which command will effectively preview a merge without making any changes?

What git commit option is equivalent to using both the -F and -e options?

Which command allows you to get the blob of some file whether it is in a repository or not?

Which user should be created first during setting up of SSH?

How many ways are present in Git to integrate changes from one branch into another?

Which option enables inclusion of committer name in custom log format?

What does commit object contain?

Which setting determines what pager is used when Git pages output?