battikh I don't think there's a command to do that. But you can either manually check in each user's bash logs. Or install and run auditd
rolf That sort of functionality is provided by SVN and the likes. Maybe there is an audit system or something you can install on linux for that. But SVN is better, I think.
Joe stat didn't work :( and installing a Version Control System like SVN for my whole filesystem .... :-S And SVN sucks, try to learn git ^^
454447415244 If you are on a 2.6 kernel, you can take advantage of the audit deamon. Take a look at this. It is very easy to install, configure and use.
Joe Thank you for auditd. It solves my problem. If you are on a 2.6 kernel Is anyone still running 2.4 ?