Deleting command history

[lydi]

In order to delete command history, I delete .sh_history file....but I still seeing my comman history when I type ctrl-k...how can I do to avoid than ctrl-k show my last commands ????

[Victor BERRIDGE]

Hi,
Im not sure what you are doing (ctrl-k ??) but I tell you it would anoy me if you see Esc-k working after doing:
>.sh_history
If it does, then you messed the .sh_history of someone else...
(Be sure to be in you home directory first...)


All the best
Victor

[lydi]

yes I'm in my home directory...and ..sorry it is not ctrl-k it's ESC-k.

I can run "pbrun ksh" to have root privileges

[Wouter Jagers]

I think your last history is saved when you log out of your shell.

Try to log off, log on again and then clear the file. Relog again and try.

If all is well, only the 'clearing the file' command should be in your history.

Cheers

[lydi]

thanks a lot !!

[Wouter Jagers]

No problem :-)

If we helped, feel free to assign us some points ;-)

Cheers

[Bill Hassell]

The .sh_history file actually contains some binary codes and will be opened by all shells logged in as this user. So zeroing .sh_history will remove the file contents but other open shells may still have cached data available. Removing the contents of .sh_history is not a normal task so the behavior can be a bit unpredictable.

If you do not want a shell history to be kept at all, you can use a (poor) workaround in .profile:

export HISTFILE=/dev/null

then login again.