How to remove some words from all text file in a folder by powershell?

Question

I have a situation that I need to remove some words from all text file in a folder. I know how to do that only in 1 file, but I need to do it automatically for all text files in that folder. I got no idea at all how to do it in powershell. The name of the files are random.

Please help.

This is the code

$txt = get-content c:\work\test\01.i

$txt[0] = $txt[0] -replace '-'

$txt[$txt.length - 1 ] = $txt[$txt.length - 1 ] -replace '-'

$txt | set-content c:\work\test\01.i

Basicly it jsut removes a "-" from first line and last line, but i need to do this on all files in the folder.

I posted in the duplicate question YOU created(duplicate questions is bad btw). http://stackoverflow.com/questions/14442229/ — Frode F., Jan 21 '13 at 16:14

score 1 · Answer 1 · answered Jan 21 '13 at 14:03

1

Get-ChildItem c:\yourfolder -Filter *.txt | Foreach-Object{
   ... your code goes here ...
   ... you can access the current file name via $_.FullName ...
}

answered Jan 21 '13 at 14:03

Shay Levy

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score 1 · Answer 2 · edited May 25 '13 at 21:02

Here is a full working example:

Get-ChildItem c:\yourdirectory -Filter *.txt | Foreach-Object{
(Get-Content $_.FullName) | 
Foreach-Object {$_ -replace "what you want to replace", "what to replace it with"} | 
Set-Content $_.FullName
}

Now for a quick explanation:

Get-ChildItem with a Filter: gets all items ending in .txt
1st ForEach-Object: will perform the commands within the curly brackets
Get-Content $_.FullName: grabs the name of the .txt file
2nd ForEach-Object: will perform the replacement of text within the file
Set-Content $_.FullName: replaces the original file with the new file containing the changes

Important Note: -replace is working with a regular expression so if your string of text has any special characters

score 0 · Answer 3 · answered Jan 21 '13 at 14:02

0

something like this ?

ls c:\temp\*.txt | %{ $newcontent=(gc $_) -replace "test","toto"  |sc $_ }

answered Jan 21 '13 at 14:02

Loïc MICHEL

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how to only remove a "-" from first line and last line? – Blitzcrank Jan 21 '13 at 14:55
$txt = get-content c:\work\test\01.i $txt[0] = $txt[0] -replace '-' $txt[$txt.length - 1 ] = $txt[$txt.length - 1 ] -replace '-' $txt | set-content c:\work\test\01.i – Blitzcrank Jan 21 '13 at 14:58

score 0 · Answer 4 · edited Jan 04 '15 at 13:13

0

$files = get-item c:\temp\*.txt
foreach ($file in $files){(Get-Content $file) | ForEach-Object {$_ -replace 'ur word','new word'}  | Out-File $file}

I hope this helps.

edited Jan 04 '15 at 13:13

oz123

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answered Jan 04 '15 at 12:54

Chand

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score 0 · Answer 5 · edited May 23 '17 at 11:43

Use Get-Childitem to filter for the files you want to modify. Per response to previous question "Powershell, like Windows, uses the extension of the file to determine the filetype."

Also: You will replace ALL "-" with "" on the first and last lines, using what your example shows, IF you use this instead:

 $txt[0] = $txt[0] -replace '-', ''
 $txt[$txt.length - 1 ] = $txt[$txt.length - 1 ] -replace '-', ''

How to remove some words from all text file in a folder by powershell?

5 Answers5