UNIX for Advanced & Expert Users

Hey,

I want to ask a simple Question....

How would I be able to come to know that files/directoires in a Parent directory has been accessed (means contents of the file has been just viewed) by the user(s) in a group ? and mail the name(s) of those files/directories which has been accessed recently in past 1 or 2 minutes with the name of the user who viewed the files/direcotries.

Please answer this QUESTION asap as I am after this problem for past 15 days and I did't get any perfect answer.

Please Help !!
Thanks !!

Well, as for your first question, I'm not surprised that you don't have lsof, it is not standard. I do not know of a version for AIX.

As for your 2nd question, Unix does not maintain a list of users who accessed stuff. You can tell that that some process accessed a file because atime will generally change. See my article, mtime, ctime, and atime for more info on that.

Maybe you can consider another OS. HP-UX can be converted into a trusted system and then full auditing can be turned on. Auditing records every system call. This requires a lot of disk space and is a heavy performance hit. But you can then inspect the logs to see who accessed which file. I believe that Solaris has something similiar, but I have not used it. And you can get lsof for both Solaris and HP-UX from the freeware sites. There may be auditing features available for AIX and there may be some way to get lsof for AIX, but I don't know AIX very well. Maybe some AIX expert can add some more info.

Hey Thanks buddy and Please let me know once you'll find out the solution to this problem !! I'll try to look into "lsof" .
I have seen your article already, thats fine !!

See this link: IBM AIX Toolbox Download Page - Alphabetical Listing

Maybe you can get lsof there.

Thanks a lot buddy !!
Keep looking, if you'll get some clue anyways !!