How to stop Bash appending history

Posted by Craig on Super User See other posts from Super User or by Craig
Published on 2011-09-15T03:29:49Z Indexed on 2012/06/10 10:42 UTC
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linux

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bash

I am having a lot of trouble setting up the terminal history of Bash the way I want.

I would like to have no duplicate entries and if I enter a command I want it saved and the duplicates above removed.

The problem is the history command shows me it is functioning the way I want however once I log out the duplicates come back again. I believe it is just appending the history to the existing one.

I have these lines in my .bashrc file (~/.bashrc)

HISTCONTROL=ignoreboth:erasedups
shopt -u histappend

I have even tried uncommenting shopt but it still appends the history on logout.

How can I have the history be exactly how it is before I logout?

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