CODEWITHSUNDEEP
windowspowershellbatch-filecmd
Arutsudar Arut
Arutsudar Arut

Reputation: 513

Pass value using pipe symbol to a powershell Start-Process command, from cmd window

I have a batch script like below. I want to call this script from a terminal window (cmd), by running it using powershell Start-Process command (Doing this in Azure ARM Template). I want to pass the INPUT value while calling the script, probably by using a pipe symbol.

Not able to pass the INPUT value through pipe symbol to a Start-Process command. Am I missing something? How can I achieve this (without any modifications to this batch file)?

@echo off
SETLOCAL EnableDelayedExpansion

set INPUT=
set /P INPUT=Type yes or no: %=%

echo[
echo actually typed %INPUT%

IF "%INPUT%"=="n" goto :CLICKEDNO
IF "%INPUT%"=="N" goto :CLICKEDNO
IF "%INPUT%"=="NO" goto :CLICKEDNO
IF "%INPUT%"=="no" goto :CLICKEDNO
IF "%INPUT%"=="No" goto :CLICKEDNO
IF "%INPUT%"=="yes" goto :CLICKEDYES
IF "%INPUT%"=="Yes" goto :CLICKEDYES
IF "%INPUT%"=="Y" goto :CLICKEDYES
IF "%INPUT%"=="y" goto :CLICKEDYES

:CLICKEDYES
echo Typed yes
goto :eof

:CLICKEDNO
echo Typed no
goto :eof

echo end of file

Even though I am trying to pass the value "no", it is printing "yes".

Below are some of the commands that I have tried.

  1. echo no | powershell Set-Location -Path C:\CAP\CAP-Installer ; Start-Process -NoNewWindow .\test.bat

  2. echo no | powershell Start-Process -NoNewWindow -FilePath C:\CAP\CAP-Installer\test.bat

    Output for the comands 1 and 2:

    Type yes or no:
actually typed no
Typed yes

  3. powershell -Command "echo no | Start-Process -NoNewWindow -FilePath C:\CAP\CAP-Installer\test.bat"

  4. echo no | powershell -Command "$input | Start-Process -NoNewWindow -FilePath C:\CAP\CAP-Installer\test.bat"

    Output for the comands 3 and 4:

    Type yes or no: Start-Process : The input object cannot be bound to any parameters for the command
either because the command does not take pipeline input or the input and its
properties do not match any of the parameters that take pipeline input.
At line:1 char:11
+ echo no | Start-Process -NoNewWindow -FilePath C:\CAP ...
+           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidArgument: (no:PSObject) [Start-Process], Paramet
   erBindingException
    + FullyQualifiedErrorId : InputObjectNotBound,Microsoft.PowerShell.Commands.Start
   ProcessCommand


C:\Users\CAP-VM>

actually typed
Typed yes

C:\Users\CAP-VM>

Any help is appreciated. Thanks is advance.

Upvotes: 0

Views: 1591

Answers (1)

user7818749
user7818749

Reputation:

You do not need to do a match for each case. use if /i to match case insensitive, we also need to use %1 to specify :

@echo off

echo Type Yes/no & set /P "in=%1"

if /i "%in%" == "n" goto :no
if /i "%in%" == "no" goto :no
if /i "%in%" == "y" goto :yes
if /i "%in%" == "yes" goto :yes

:yes
echo Typed yes
goto :eof

:no
echo Typed no
goto :eof

obviously it is not even needed to set anything, so this is a better option:

@echo off

if /i "%~1" == "n" goto :no
if /i "%~1" == "no" goto :no
if /i "%~1" == "y" goto :yes
if /i "%~1" == "yes" goto :yes

:yes
echo Typed yes
goto :eof

:no
echo Typed no
goto :eof

and Even better, use choice to make choices instead of using if

@echo off
choice /c yn /m "yes/no"
if not "%errorlevel%" equ "0" goto _opt%errorlevel%
exit /b 0
:_opt1
echo You chose Yes
goto :EOF

:_opt2
echo You chose No
goto :EOF

You can simply run it directly from cmd and not via cmd to call powershell to run a batch-file which runs in cmd. Much simpler:

echo yes|"C:\CAP\CAP-Installer\test.bat"

If you really need to use it via powershell send it as a paramater:

powershell Start-Process -NoNewWindow -FilePath C:\CAP\CAP-Installer\test.bat yes

Upvotes: 1

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