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Batch file to delete and copy latest file

Posted on 2008-10-30
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Last Modified: 2013-12-26
Hi,  I have configured Acronis to create daily backups based on an orginal image file.   The file number increments daily.   What has happened is that I ran a script to delete the older files and copy the latest.   However the script delete the latest file and left a file that is 3 days old and did the copy based on that file; e.g. I had 12 file labeled hbserver_bkup1.tib to hbserver_bkup12.tib with # 12 having a timestamp of 10/29/2008.   However, when I ran the script all the files from 1-12 for delete with the exception of hbserver_bkup9.tib dated 10/26/2008 and said bkup9.tib was copied.

This is the script......where did I go wrong.   I'm also new to this:

@echo off
setlocal enabledelayedexpansion
for /f "skip=1 tokens=* delims= " %%a in ('dir/b /a-d /o-n *.tib') do (
del %%a
)

xcopy z:\*.tib /a /y /d /k "i:\Server Backup"
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Question by:stug
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4 Comments
 
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Assisted Solution

by:Kaddict
Kaddict earned 1000 total points
ID: 22847190
The dir statement fails to reorder your files correctly.

I'm working on a solution please hang on

-kaddict
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Accepted Solution

by:
Kaddict earned 1000 total points
ID: 22847222
OK. The method I'm using sorts the *.tib files by date, from the LATEST to the OLDEST. It keeps (does not delete) the LATEST file, #12, and it deletes 1-11. If I misunderstood what you wanted, just let me know where, and I will correct my solution.

--------cut----------------------------------------
@echo off
setlocal enabledelayedexpansion
Z:
cd\
for /f "skip=1 tokens=* delims= " %%a in ('dir/b /a-d /o-d *.tib') do (
del %%a
)
xcopy *.tib /y "i:\Server Backup"
--------cut----------------------------------------

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LVL 4

Assisted Solution

by:Kaddict
Kaddict earned 1000 total points
ID: 22847235
Note:  Sorting DOS filenames by names will not work if they the numbers are for example 1-2-3-4-5-6-7-8-9-10-11 because it'll sort as 1-10-11-2-3-4-5-6-7-8-9... you need numbers like 001-002-003-004-005-006-007-008-009-010-011 in order to sort by name, and I think you can't have Acronis to number the files like that. That's why I recommend sorting by date... yerterday's backup will always be older that today's one ;-)

-kaddict
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Author Closing Comment

by:stug
ID: 31511926
Thank you very much and my apologies for taking so long to respond.   I had to wait a few days for the file list to grow.
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