Mastering Windows PowerShell Scripting - Second Edition

Redirecting streams to standard output

Streams can be redirected to standard output in PowerShell. The destination stream is written on the right-hand side of the redirect operator (without a space). Stream numbers on the right-hand side are prefixed with an ampersand (&) to distinguish the stream from a filename.

For example, the Information output written by the following command is sent to standard output:

PS> function Test-Redirect{    'This is standard out'    Write-Information 'This is information'}$stdOut = Test-Redirect 6>&1$stdOutThis is standard outThis is information 

It is possible to redirect additional streams, for example, warnings and errors, by adding more redirect statements. The following example redirects the error and warning ...