CODEWITHSUNDEEP
windowspowershellbatch-filedevops
Quak
Quak

Reputation: 7451

Running Powershell command from .bat script doesn't work, however it works when I type it directly in Command Line

Powershell -Command "cat .\tmp.txt | %{$_ -replace '\D', ''}"

Why running above Powershell command from .bat script doesn't work? It works only when I type it directly in Command Line...

Running from .bat script produces the following message:

    Expressions are only allowed as the first element of a pipeline.
    At line:1 char:39
+ cat .\tmp.txt | {$_ -replace '\D', ''} <<<<
    + CategoryInfo          : ParserError: (:) [], ParentContainsErrorRecordException
    + FullyQualifiedErrorId : ExpressionsMustBeFirstInPipeline

Upvotes: 1

Views: 1200

Answers (1)

TechSpud
TechSpud

Reputation: 3528

powershell /? gives this help text (trimmed below to show only the relevant text).

-Command
...
To write a string that runs a Windows PowerShell command, use the format:
    "& {<command>}"
where the quotation marks indicate a string and the invoke operator (&)
causes the command to be executed.

So your batch file powrshell line needs to read:

powershell -Command "&{ cat .\tmp.txt | ForEach-Object {$_ -replace '\D', ''} }"

(note the extra curly braces wrapped around your command and % being replaced with ForEach-Object)

Upvotes: 4

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