[Tutor] Copy script

[Kent Johnson]

Que Prime wrote:
> I have a folder of 150,000 pdf files and I need to copy 20,000 of them 
> to another folder.  The ones I need to copy are in a .txt file.  
> Attached is a sample of the input .txt file and a dos directory of the 
> folder containing the files.  I'm not sure of the best way to accomplish 
> this.

So a sample filename is
000012347425 [0ea7b60a-3631-4f64-91fa-6e385296f18f].pdf

and you would want to copy this because 12347425 is in the txt file?

If that is correct understanding, I think I would
- read the txt file and put all the numbers in a set.
- iterate through the file names in the source dir
- isolate the initial number part of the file name, strip the leading 0's
- check if the initial number is in the set
- if so, then copy the file

Are all the files in one directory? If so I guess you will have to have 
enough memory to hold all the file names (as well as the set of numbers) 
and probably a bit of patience! I don't know a way to generate the 
sequence without creating the full list.

Kent

> Thank you in advance for your help.
> 
> Sample input file:
> 
> 12347424  
> 12347425  
> 12347426  
> 12347427
> 
> 
> Sample dir on folder:
> 03/20/2008  09:21 AM           145,257 000000011479 
> [7ac0c741-9d2f-4a1d-9dbf-8de27ca0abb4].pdf
> 03/20/2008  09:21 AM           154,655 000000011600 
> [cd752a5a-388a-4bad-9a52-fb3711f685b8].pdf
> 03/20/2008  09:21 AM           145,556 000000015234 
> [4344f5ff-fa58-4e20-bf27-697c71a81fbc].pdf
> 03/20/2008  09:21 AM           152,785 000012347424 
> [44cc0d43-a80d-4415-8e92-b6a4f62986b4].pdf
> 03/20/2008  09:21 AM           145,551 000012347425 
> [0ea7b60a-3631-4f64-91fa-6e385296f18f].pdf
> 
> 
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