Can't Activate Document in Pipeline (unix script)

Question

I'm trying to run the program bayes-seg with: cat data/books/clinical/050.ref | ./segment config/dp.config using Powershell.

I understand that the command cat outputs the file and pipe will use the output as a parameter to ./segment config/dp.config

When running the above command. I'm met with the exception:

Cannot run a document in the middle of a pipeline: C:\Users\name\Desktop\bayes-seg-master\segment.
At line:1 char:35
+ cat data/books/clinical/050.ref | ./segment config/dp.config
+ CategoryInfo: InvalidOperation: (C:\Users\name\...-master\segment:String) [], RuntimeException
+ FullyQualifiedErrorId : CantActivateDocumentInPipeline

What causes this exception? I've looked around on Google and could not find anything which explains the exception in detail. Any help would be greatly appreciated.

Answer 1

As the executable segment.exe is not aware of PowerShell style pipeline, you must use ForEach-Object to specify a specific argument to segment.exe:

cat data/books/clinical/050.ref | %{ ./segment config/dp.config $_ }

As I'm not aware of this executable usage, you may need to adapt the arguments as you need.