On Sun, 19 Mar 2006 11:37:57 -0600, Octavio Ruiz (Ta^3) wrote:

> You also want to set,
> 
> export PROMPT_COMMAND="${PROMPT_COMMAND:+${PROMPT_COMMAND} ;} history -a"
> 
> in cojuction with histappend.

This results in PROMPT_COMMAND being set to "history -a; history -a"
after using su. It is added for the initial login and again for the root
login. However, "PROMPT_COMMAND="history -a" seems to work, as I don't
use PROMPT_COMMAND for anything else.

echo $PROMPT_COMMAND | grep -q history\ -a || export PROMPT_COMMAND...

should take care of it in a more general case.


-- 
Neil Bothwick

Top Oxymorons Number 43: Genuine imitation