Delete lines in files (text files)

[Till Bandi]

I guess that would be a good solution - my only problem is that the  
file has 5.6 Gigabytes. So I can't put it all in memory.

My real problem is here:

     put 1 into vStartwert
     set the cursor to watch
     open file tFileIn
     open file tFileOut

     repeat forever
         read from file tFileIn at vStartwert for 1000000 lines
         put it into vChunk
         replace ";" with tab in vChunk
         replace "," with "." in vChunk
         write vChunk to  file vFileOut at end
         add number of chars of vChunk to vStartwert
     end repeat
     close file tFileIn
     close file tFileOut

This works until the output file reaches 2 Gigabytes. So I think  
vStartwert is getting to big and doesn't work anymore. Therefore I  
wanted to delete
the Lines I already treated in the input file so I could always start  
at the first line.

Maybe there is a better solution?

Till

Am 17.01.2008 um 20:25 schrieb Devin Asay:

>
> On Jan 17, 2008, at 12:05 PM, Till Bandi wrote:
>
>> Hi all
>>
>> is there a way to delete lines in a text file from Revoution? - i  
>> did not see how this can be done but probably it is very simple.
>
> Till,
>
> You have to read it in then write it back out. You can do it in one  
> line like this (assume you want to delete the first line):
>
> put line 2 to -1 of url "file:/path/to/file.txt" into url "file:/ 
> path/to/file.txt"
>
> Just modify the range of lines you want to have in the final file.
>
> HTH
>
> Devin
>
> Devin Asay
> Humanities Technology and Research Support Center
> Brigham Young University
>
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