Making .bash_history non writeable by user?

Yuri Pankov yuri.pankov at
Thu Feb 28 13:07:50 UTC 2008

On Thu, Feb 28, 2008 at 06:00:52PM +0530, Girish Venkatachalam wrote:
> Hello friends,
> My friend wants the user commands history file ~/.bash_history to be non
> writeable by user. He feels that the user should not able to erase the commands
> entered by him. 
> A reasonable requirement.
> In case the ~/.bash_history file can also be written to
> another location that the root alone can access then perhaps we can
> solve this problem.
> But AFAIK bash runs as the user process. How can you make the file
> readable and writeable by root alone? In that case how can the history 
> mechanism function?
> Do you guys know a way to get around this problem?
> Thanks.
> -Girish
> -- 
> "unix soi qui mal y pense"
> UNIX to him who evil thinks

Try setting 'sappend' flag on .bash_history with chflags(1).


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