Solved

DOS batch file, change numbers within a text file

Posted on 2014-01-20
11
262 Views
Last Modified: 2014-01-20
I have ~2,500 text files like this:

10.00000
0
0
-10.00000
2827500.250
2179999.750

I need to modify the last two lines:

Line [5]  + 4.75
Line [6]  - 4.75

many thanks
0
Comment
Question by:hgj1357
11 Comments
 
LVL 19

Accepted Solution

by:
Raheman M. Abdul earned 200 total points
ID: 39794525
The following script changes the last lines of the *.txt files. For safety you can make a copy of all your .txt files before you run the following script.

Start -> run -> Powershell_ise (Enter)


Paste the following : and rename the location of folder c:\drivers to your location
---------------------------------
$files = Get-ChildItem C:\DRIVERS -Filter *.txt
foreach ($file in $files)
{
$text=gc $file.Fullname
$text[-2]="+4.75"
$text[-1]="-4.75"
$text > $file.FullName

}
---------------------------------
Press F5
0
 
LVL 2

Author Comment

by:hgj1357
ID: 39794574
I'm not familiar with Powershell.

Where do I paste, and how do I run it .  Thanks
Powershell.jpg
0
 
LVL 35

Assisted Solution

by:Dan Craciun
Dan Craciun earned 300 total points
ID: 39794584
I think the OP wants those values modified. In which cases the script should be:

$text[-2] = 4.75 + $text[-2]
$text[-1] = -4.75 + $text[-1]

Note that you need the 4.75 + $text to force Powershell to add numbers, cause $text + 4.75 will concatenate strings.

HTH,
Dan
0
Has Powershell sent you back into the Stone Age?

If managing Active Directory using Windows Powershell® is making you feel like you stepped back in time, you are not alone.  For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why.

 
LVL 35

Expert Comment

by:Dan Craciun
ID: 39794587
@hgj1357: you need to paste it in the lower window
0
 
LVL 2

Author Comment

by:hgj1357
ID: 39794622
How do I run it?
0
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 39794653
BTW, if you want to keep the 3 decimals (as in 2827500.250) you need to modify the code like this:
Param (
[string]$inputPath = "X:\path\to\your\files"
)

$files = Get-ChildItem $inputPath -Filter *.txt
foreach ($file in $files)
{
    $text=gc $file.Fullname
    $text[-2] = "{0:F3}" -f (4.75 + $text[-2])
    $text[-1] = "{0:F3}" -f (-4.75 + $text[-1])
    $text > $file.FullName
}

Open in new window

Save the code as whatever.ps1 and run it as whatever.ps1 X:\your\path

OR, change X:\path\to\your\files to your actual path, paste the entire script in the lower pane of the Powershell ISE window and then press ENTER.
0
 
LVL 35

Assisted Solution

by:Dan Craciun
Dan Craciun earned 300 total points
ID: 39794676
run script
0
 
LVL 2

Author Comment

by:hgj1357
ID: 39794826
This works - nearly.  The resultant text file is some kind of ANSI format that I can not use further. (In AutoCAD).  If I open and save as ANSI encoded file type, it then works again.  Is there a way to bulk change the encoding type to ANSI?
0
 
LVL 35

Expert Comment

by:Dan Craciun
ID: 39794896
Run this in powershell:

Get-ChildItem "X:\path\to" -Filter *.txt | % { (Get-Content $_.fullname) | Set-Content $_.fullname -Force -Encoding ASCII}

Open in new window


Of course, change X:\path\to to your actual path.
0
 
LVL 2

Author Comment

by:hgj1357
ID: 39795032
I used type File>Newfile.txt to fix issue.

All good.

Thanks
0
 
LVL 38

Expert Comment

by:Gerwin Jansen, EE MVE
ID: 39795259
Removed MSDOS Topic and added Powershell Topic since the accepted solution is not an MSDOS based solution.

Gerwin Jansen
EE Topic Advisor
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to prepare an HTML email signature template file containing dynamic placeholders for users' Azure AD data. Furthermore, it explains how to use this file to remotely set up a department-wide email signature policy in Office …
In Part II of this series, I will discuss how to identify all open instances of Excel and enumerate the workbooks, spreadsheets, and named ranges within each of those instances.
This video shows where to find templates, what they are used for, and how to create and save a custom template using Microsoft Word.
The viewer will learn how to simulate a series of coin tosses with the rand() function and learn how to make these “tosses” depend on a predetermined probability. Flipping Coins in Excel: Enter =RAND() into cell A2: Recalculate the random variable…

679 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question