Emergency UNIX and Linux Support

One of my directory code where i have stored all my scripts have disappeared . I have no idea on how it got deleted.Could someone pls help me to track-back on what would have happened? I left the office yesterday and today when i just logged in to work with the scripts I could not find the directory code. Do we have any commands to check like.. who was last logged in or what transactions they made..
I use Linux machine..

Who was logged in can be seen with the last command. If you have no auditing running, it is unlikely that you can see who deleted them etc.
Best is to have a backup and restore them if possible.

Thank you.. i have used that command and it gives a big list since, we use same username (i guess) and im not able to sort out who deleted the dir. Alongside im in touch with the unix admin.Any other insights are welcome..

If you all use bash or tcsh, you can check the history files in all home directories. The parent directory if the one that was deleted may have a timestamp reflecting the last change to that directory. This might be useful in narrowing the timeframe of the deletion.

Here is one command to search all the history files for the 'rm' command:

Code:

find /home -name .bash_history -print | xargs grep -w rm

When i give as

Code:

echo $SHELL # it gives as /bin/zsh

. So whether would i able to use the below command or any other? however i executed it and got only find: /home/lost+found: Permission denied .. .. etc

Each shell has it's own history file. Search these forums or
The respective man pages for details. The comma d
Must be run as root.

Thanks for the guidance both of you... i will search for it..