如何使用PowerShell从文本文件中的行尾删除空格

Question

I found a find-and-replace text answer from another question.

How do I use PowerShell to remove extra spaces at end of line in a text file?

Answer 1

There are a number of approaches but this one is pretty simple:

$content = Get-Content file.txt
$content | Foreach {$_.TrimEnd()} | Set-Content file.txt

You may need to tweak the Encoding parameter on the Set-Content cmdlet to get the file output in the encoding you want (Unicode, ASCII, UTF8, etc).

Answer 2

For small files (less than 250 MB) you could use:

$file = "Log20130820"

Get-Content $file  | Foreach {$_.TrimEnd()}  | Set-Content "$file.txt"

For files that are too large, the script would fail with OutOfMemoryException.