Re: bash: clean history on logout?

[feralert <feralert%gmail.com@localhost>]

On Thu, Sep 1, 2011 at 5:42 PM, Ian D. Leroux <idleroux%fastmail.fm@localhost> 
wrote:
> On Thu, 01 Sep 2011 16:43 +0200, "feralert" <feralert%gmail.com@localhost> 
> wrote:
>> I have a NetBSD 4.0 machine (a few actually) I have taken over from
>> someone lately that doesn't keep bash history from one session to
>> another.
>>
>> What i have tried so far is:
>>
>> - Check .bash_history is a regular file (not a link)
>>     # ls -l .bash_history
>>     -rw------- 1 root wheel 10282 Sep  1 12:26 .bash_history
>>
>> - And that the HISTFILE var points to the right file
>>      # echo $HISTFILE
>>      /root/.bash_history
>>
>> - looked for .bash_logout, but it doesnt exits.
>>
>> - checked in crontab but there is nothing there.
>>
>>
>> I don't know where else to look so any help would be appreciated.
>
> From bash(1):
> HISTFILESIZE
>    The maximum number of lines contained in the history file. When this
>    variable is assigned a value, the history file is truncated, if
>    necessary, to contain no more than that number of lines. The default
>    value is 500. The history file is also truncated to this size after
>    writing it when an interactive shell exits.
>
> Setting HISTFILESIZE to 0 might therefore do what you describe seeing.
>
> --IDL
>

Sorry, I forgot to add it to the 'tried things' list:

# set | grep -i hist
HISTFILE=/root/.bash_history
HISTFILESIZE=500
HISTSIZE=500
SHELLOPTS=braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor


Fred.