Using Git without Sudo in many accounts

Question

How can you use Git without Sudo in multiple accounts in one Ubuntu?

My Ubuntu has many accounts. The creation of new accounts has made Git inaccess

Answer 1

Having the permissions of any executable set so that a normal user can overwrite the executable is a considerable security risk. (Try overwriting /usr/bin/git with a shell script that calls rm -rf $HOME.)

Change the permissions back to 755 and make git owned by root:root again. (Ubuntu's package manager would reset the permissions on the next upgrade anyhow unless you used dpkg-statoverride(8))

I agree with those who say that it may not be a good idea to have multiple users share one git repository. If you still think that it is necessary, consider setting up a new group, chgrp the directory holding the repository and all the files therein to that group andset the setgid bit on the directories. (The --shared parameter to git init may do some of this for you, too.) Then, add all the users to the group that should have commit rights.