how to disable "unset HISTORY"

[Tiziana Manfroni]

Hi, I have some users that delete .history file (in tcsh shell), so I 
can't see their commands.
Can I disable the command "unset history"?
If it is not possible, what can I do?Thanks in advance

        Tiziana
--
users mailing list
users@lists.fedoraproject.org
To unsubscribe or change subscription options:
https://admin.fedoraproject.org/mailman/listinfo/users
Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
Have a question? Ask away: http://ask.fedoraproject.org