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Thanks. "Tail.exe" sounds like a good idea but I have problems with outputting data to multiple files. As long as I output data to the command console everything works fine. Below is an example of outputting the last three lines of data from all the files in a folder to the console, with the following command:
tail -n 3 P:\zz1\*-T.dly
http://img199.imageshack.us/img199/7100/11132009170036.png
Outputting data to a single file in another folder works ok too:
tail -n 3 < P:\zz1\ZMT-T.dly > P:\zz2\ZMT-T.dly
http://img689.imageshack.us/img689/7116/11132009171219.png
However, neither of the following two commands would work:
tail -n 3 < P:\zz1\*-T.dly > P:\zz2\
tail -n 3 < P:\zz1\*-T.dly > P:\zz2\*-T.dly
I'm wondering how to "copy" multiple files from one folder to another in such a way that the files in the second folder will only show the specified number of last lines (last two, last three, etc).
--- In amibroker@xxxxxxxxxxxxxxx, Robert Chevallier <robert.chevallier@xxx> wrote:
>
> Another way could be to use the "tail" utility in a command line batch (see
> for instance http://sourceforge.net/projects/unxutils/)
> and use to 1st create files with just the last line (tail -n 1 *
> file-alllines* > *file-lastline* )
> and use these files for import
>
> 2009/11/13 lesv99 <ebsn247lsm@xxx>
>
> >
> >
> >
> >
> > If there is no way to do it with ASCii Importer then how about importing
> > data using AFL? You would just need a "for" loop like the one below to
> > extract the last line in the data array, but I don't have a clue about the
> > rest of the code needed for importing data (if it's possible at all), I
> > couldn't find any examples in AFL Library:
> >
> > for( i = BarCount-1; i < BarCount; i++ )
> >
> > I export data using AFL all the time, here is example (the code is based on
> > Graham Kavanagh's code from AFL Library):
> >
> > http://img44.imageshack.us/img44/7641/11122009212131.png
> >
> >
> > --- In amibroker@xxxxxxxxxxxxxxx <amibroker%40yahoogroups.com>, "lesv99"
> > <ebsn247lsm@> wrote:
> > >
> > > Is there a way to import only the last line from ASCii data file?
> > >
> > > This option could be expected in $SKIPLINES command, but I don't see it
> > there.
> > >
> > > The data file format is as follows (file name = ticker symbol):
> > >
> > > Date,Open,High,Low,Close,Volume,OpenInt
> > >
> > > 11/09/09, 2.4500, 2.5100, 2.4500, 2.5000, 1137245, 652
> > > 11/10/09, 2.5500, 2.7300, 2.5500, 2.6300, 837775, 510
> > > 11/11/09, 2.75, 3.49, 2.73, 3.27, 6465800, 489
> > > 11/12/09, 3.19, 3.56, 3, 3.16, 4803500, 742
> > >
> > > Format definition file to import all lines of data looks like this:
> > >
> > > $FORMAT Date_MDY, Open, High, Low, Close, Volume, OpenInt
> > > $SEPARATOR ,
> > > $SKIPLINES 2
> > > $AUTOADD 1
> > > $CONT 1
> > > $DEBUG 1
> > > $BREAKONERR 1
> > >
> > > How to import the last line only:
> > >
> > > 11/12/09, 3.19, 3.56, 3, 3.16, 4803500, 0
> >
> >
> >
>
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