Powershell: How to capture output from the host

问题:

I am using powershell to automate some tasks related to checking out/merging in TFS. When I call

tf get * /recurse

I get a bunch of data scrolling by about the files that are getting checked out. The last line generated by this command (assuming its success) is one telling the checkin number. I would like to parse this out so it can be used later on in my script.

I know that I can do something like

$getOutput = tf get * /recurse

but then the output is suppressed entirely and I want the output of that command to be scrolled in realtime. I would basically like to grab everything that just got sent to the output buffer.

回答1:

Try something like this:

tf get * /recurse | tee-Object -Variable getOutput

回答2:

The tee-object in PowerShell 2.0 allows you to pipe results to two sources. If you leave the second source empty, the results go to the console.

ls | tee-object -filePath directoryListing.txt

This will write the directory listing to both the console and a text file.