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how unix stores command history

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# 1  
Old 09-09-2005
how unix stores command history
Hi techies,

I have a doubt upon the command history utilities in Unix ...
As far as I know, history stores the event number and command for upto
that many number of previous commands executed in the HISTSIZE variable ... my doubt here is can we get the time in which these commands were executed and/or the user who did this ?? Does Unix store these details too in any file ...

Thanks in advance,

SNS
# 2  
Old 09-09-2005
im afraid not! but i may be wrong Smilie
Anyway , u can have those features if u dare to 'hack' the shell and store any useful information in a file of your own (originating_ip, terminal, user, time ...) but thats another long story which i guess you'r not looking for Smilie
# 3  
Old 09-09-2005
Depends on OS (and shell)....

Some OS's have the "lastcomm" command (if accounting is properly enabled) which will show this information....

Otherwise, if you're root, check the users history file (dependant on shell) in their home directory.

Cheers
ZB
# 4  
Old 09-10-2005
On our systems, I have seen a file /tmp/.sh_history. This holds commands that have been run using ksh. Maybe you have something similar...
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