Your message dated Mon, 1 Jul 2024 02:08:06 +0200
with message-id <c839156c-4fe0-421a-bb19-050682ed8...@svario.it>
and subject line Re: Bug#343976: Acknowledgement (History file is saved with
incorrect size)
has caused the Debian Bug report #343976,
regarding History file is saved with incorrect size
to be marked as done.
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343976: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=343976
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--- Begin Message ---
Package: bash
Version: 3.0-17
For quite a while now Ive noticed a bug in bash failing to save the
history file correctly. I often find that a history of 500 lines simply
isnt enough, so I have edited my .bashrc to set HISTSIZE and HISTFILESIZE
to 5000. However this does not appear to make any difference, as the
.bash_history file seems limited to 500 lines (actually, 505 lines at
~9k). Even checking that both environment variables are set to 5000.
Are there any instances in the bash source where these values are
hard-coded, or even referenced? This bug has been present for well over a
year, and finally annoyed me enough to report it.
I can help provide any further information necessary to help investigate
this issue, but it seems to be 100% reproducable on several machines I
have, running different versions of bash.
David Murn
David Murn
--- End Message ---
--- Begin Message ---
Version: 5.0-6
On Mon, 19 Dec 2005 16:37:22 +1100 "David Murn"
<da...@incanberra.com.au> wrote:
Upon digging a little further (I really shouldve done this before
submitting the first report), I have discovered what I think may be the
problem. When I logout, bash saves the complete history (upto HISTSIZE
lines) to the .bash_history file, however the problem occurs when bash
starts up. It sets up its environment, setting HISTSIZE to 500, then
reads in (at most) 500 lines from the .bash_history file. It then
processes the .bashrc and HISTSIZE is set to 5000, but by then the history
has already been truncated to the initial value of 500 lines.
There are a couple of solutions I can see to this..
1) Read in the .bash_history file upon startup, upto EOF. Once completed,
set HISTSIZE to the number of lines read from the file. This has a
problem that you are reading an unknown number of lines, so may need some
upper limit set.
2) Process the .bashrc file before reading in the .bash_history file, so
that if the user does wish to change these values, it is possible. This
would seem to be the easiest option, however I have not looked too
in-depth at how this could be accomplished.
Bash version 5.0-6 (but probably also already in version 4) correctly
reads ~/.bashrc before reading ~/.bash_history.
Regards,
--
Gioele Barabucci
--- End Message ---
