Running PowerShell commands in Mathematica

Question

I'm trying to execute a PowerShell command using Mathematica. Someone has made it before?

I tested my command direct in PowerShell, and it worked nice, but no idea on how can I make Mathematica to call it. Here is a related answer dealing with scripts.

Maybe the new RunProcess can be a nice new function to handler that, and I could better collect the prompted results.

Here is the command I want to execute:

git -C C:\somePath pull ssh://[email protected]/myaccount/myProject.git

A better toy command is welcome...

Answer 1

Well, not a PowerShell use, but an example of the new V10 function RunProcess.

Using this link, I did this batch to add my private key in the repository ever time windows start:

@ECHO OFF
for /f "tokens=1,2 delims==; " %%i in ('call ssh-agent') do (
if "echo" neq "%%i" (
set %%i=%%j
setx %%i %%j 
)
)
cd c:/keyPath
ssh-add myKey

Now I can update my git using RunProcess as:

RunProcess["CMD",All,
"sh --login -i -c \"git -C C:/path/local/repository pull ssh://[email protected]/myaccount/myrep.git\"
exit
"]

With RunProcess you can have better control over system output using it secont argument.

Answer 2

You can use the new RunProcess as you have already noticed:

RunProcess[{"powershell", "Get-Help"}, "StandardOutput"]

Or you can stick to the old fashion (which is basically invoke powershell from cmd):

RunInCmd[cmd_] := 
        FromCharacterCode[ReadList["!" <> cmd, Byte],
                "CP936" (*change it to whatever codepage you want*)
          ] // StringSplit[#1, "\n"] &

RunInCmd["powershell Get-Help"]

Answer 3

This is another way of doing it:

Import["!powershell.exe \"Get-Help\"", "TEXT"]