I was wondering how the command history work. For example when I type history in the root, I am seeing all the past commands that I had type. But my colleague did type some commands just now but they seems not shown in the history file. He is type those command using root too. Anyone know why it is not shown in my history command session output. Anyone know why? Besides, how do I see other non-root user command history ? __________________________________ Discover Yahoo! Stay in touch with email, IM, photo sharing and more. Check it out! http://discover.yahoo.com/stayintouch.html