Re: [Matplotlib-users] Plot data from file while is file is constantly updated

[Damon M. <dam...@gm...>]

On Thursday, November 8, 2012, Alejandro Weinstein wrote:

> If  you are in a Linux machine, you can use `inotify`: "Inotify (inode
> notify) is a Linux kernel subsystem that acts to extend filesystems to
> notice changes to the filesystem".
>
> It seems that there are a few option to use this from Python:
>
> http://pyinotify.sourceforge.net/
> http://code.activestate.com/recipes/576375-low-level-inotify-wrapper/
>
> Alejandro.
>
> On Thu, Nov 8, 2012 at 1:34 AM, Sebastian Rhode <seb...@gm...<javascript:;>>
> wrote:
> > Hi,
> >
> > I have a textfile where every second a line is written. Usually the look
> > like this:
> >
> > 1; 124; 455
> >
> > a second later
> >
> > 1; 124; 455
> > 2; 104; 600
> >
> > ...
> >
> > Finally such a file is quite easy to plot using matplotlib. But what
> would
> > be very useful for me is a script, that is watching the TXT file and
> updates
> > the plot when a new row "arrives". Any good ideas?
> >
> > Cheers,
> >
> > Sebi
> >
> >
> >
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In bash:

watch -n1 tail file.txt


-- 
Damon McDougall
http://www.damon-is-a-geek.com
B2.39
Mathematics Institute
University of Warwick
Coventry
West Midlands
CV4 7AL
United Kingdom