Strange. I've installed it on two different desktops and one laptop and on all three 'history /f' does not clear the list. It works fine with TCCLE 11. I've tried verison 12 with my TCCLE 11 ini file and with "no" ini file but cannot get 'history /f' to clear the history list. I'll keep poking around.It's working here, both local and global history lists, and both the plain /F and the /F"text" syntax.
Are you having a problem?