CODEWITHSUNDEEP
powershell
conye9980
conye9980

Reputation: 159

Replacing a string at a particular positiion

I have a text file with Name at position 0-10, phone at 11-20.

How can I replace a string at location 11 to contain all 9's?

I've been playing around with Get-Content and -replace to get familiar.

$path = "g:\test.txt"
(Get-Content $path) -replace "Name", "Forename" | Out-File $path

Example :

STARTDELIV|BA|BATCH PRINT               |
INFORMAT01|[email protected]            |
INFORMAT02|01021990|CRZWS|AA|2          |
INFORMAT03|Mr. John Doe|+00000          |

So say I would like to replace the name Mr. John Doe with X's , how would I prevent it replacing the same 10 bytes on every line

Upvotes: 0

Views: 65

Answers (1)

Mark Wragg
Mark Wragg

Reputation: 23355

You could use the SubString method to get the 10 characters of the string starting from position 11:

$Path = "g:\test.txt"
$String = (Get-Content $Path)     
$StringToReplace = $String.Substring(11,10)

And then use -Replace to replace that part of the string with all 9s (beware this assumes that string doesn't occur in that way anywhere else in the string):

$String -Replace $StringToReplace,('9'*$StringToReplace.Length)

Here's a shorter single line way to achieve the same result:

$String.Replace($String.Substring(11,10),'9'*10)

Upvotes: 1

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