i'm trying call new shell due memory leak library. when call shell, need pass arg (the real code pass 2 args). after block of code has executed in new shell, needs return value. wrote test code reproduce error:
function getlastname { param ($firstname) $lastname = powershell -firstname $firstname { param ([string]$firstname) $lastname = '' if ($firstname = 'john') { $lastname = 'doe' write-host "hello $firstname, last name registered $lastname" } write-host "last name not found" write-output $lastname } write-output $lastname } function main { $firstname = 'john' $lastname = getlastname $firstname write-host "your name $firstname $lastname" } main the error get...
powershell : -firstname : term '-firstname' not recognized name of cmdlet, function, script file, or operable @ c:\scripts\tests\test1.ps1:5 char:15 + $lastname = powershell -firstname $firstname { + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + categoryinfo : notspecified: (-firstname : th...e, or operable :string) [], remoteexception + fullyqualifiederrorid : nativecommanderror program. check spelling of name, or if path included, verify path correct , try again. @ line:1 char:1 + -firstname john -encodedcommand dqakaakacqajafaayqbyageabqagacgawwbzahqacgbpag4a ... + ~~~~~~~~~~ + categoryinfo : objectnotfound: (-firstname:string) [], commandnotfoundexception + fullyqualifiederrorid : commandnotfoundexception can me how this?
the syntax calling powershell.exe execute scriptblock within powershell bit different:
powershell.exe -command { scriptblock content here } -args "arguments","go","here" so in script should be:
$lastname = powershell -command { param ([string]$firstname) $lastname = '' if ($firstname = 'john') { $lastname = 'doe' write-host "hello $firstname, last name registered $lastname" } else { write-host "last name not found" } write-output $lastname } -args $firstname 
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