'Powershell - Fastest way to write large body of text to a file
In terms of runtime performance, which is the fastest method in powershell to write a large body of text into a file?
Solution 1:[1]
$sw = new-object system.IO.StreamWriter(<my file path>)
$sw.write(<my large body of text>)
$sw.close()
Solution 2:[2]
Guillaume Bordier wrote a nice article about the different methods of writing to a file.
From the article's conclusion:
Method - Time to completion
‘>>’ - 29 s
Out-file and [Array] - 27 s
export-csv - 22 s
StreamWriter - 1.5 s
The fastest way to write to a file (by a margin) is using StreamWriter.
Solution 3:[3]
Definitely read the excellent article from PS admin blog (with code example).
Summary is to avoid foreach-object loop and use following for write to file:
- .net File WriteLine
- .net StreamWriter WriteLine
Also a good explanation : https://powershellexplained.com/2017-03-18-Powershell-reading-and-saving-data-to-files/#faster-reads-with-systemiofile
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | David Brabant |
| Solution 2 | Mario Tacke |
| Solution 3 |