You must provide a value expression following the '-' operator

Question

I have a some code in PowerShell and I need to use it in cmd.exe

I am using this command in cmd.exe

powershell -command "command"

But it gives me this error

At line:1 char:72
+ ... nt D:\15.txt -TotalCount 3)[-1] | Foreach-object {$_ -replace REG_SZ, ...
+                                                                  ~
You must provide a value expression following the '-replace' operator.
At line:1 char:73
+ ... 5.txt -TotalCount 3)[-1] | Foreach-object {$_ -replace REG_SZ,  } | F ...
+                                                            ~~~~~~
Unexpected token 'REG_SZ' in expression or statement.
At line:1 char:79
+ ... .txt -TotalCount 3)[-1] | Foreach-object {$_ -replace REG_SZ,  } | Fo ...
+                                                                 ~
Missing argument in parameter list.
At line:1 char:113
+ ... -object {$_ -replace REG_SZ,  } | Foreach-object {$_ -replace Gmail,  ...
+                                                                  ~
You must provide a value expression following the '-replace' operator.
At line:1 char:114
+ ... t {$_ -replace REG_SZ,  } | Foreach-object {$_ -replace Gmail,  } | s ...
+                                                             ~~~~~
Unexpected token 'Gmail' in expression or statement.
At line:1 char:119
+ ...  {$_ -replace REG_SZ,  } | Foreach-object {$_ -replace Gmail,  } | se ...
+                                                                 ~
Missing argument in parameter list.
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : ExpectedValueExpression

My command is :

powershell -command "(Get-Content D:\15.txt -TotalCount 3)[-1] | Foreach-object {$_ -replace "REG_SZ", " "} | Foreach-object {$_ -replace "Gmail", " "} | set-content D:\15.txt"

Answer 1

You can't use doublequotes to wrap the command and inside the command itself. Cmd.exe/Powershell.exe will end the command at the next double quote which is at "REG_SZ" in this example. Try using single quotes inside the command:

powershell -command "(Get-Content D:\15.txt -TotalCount 3)[-1] | Foreach-object {$_ -replace 'REG_SZ', ' '} | Foreach-object {$_ -replace 'Gmail', ' '} | set-content D:\15.txt"