PowerShell's pipe adds linefeed

Question

I\'m trying to pipe a string into a program\'s STDIN without any trailing linefeeds (unless that string itself actually ends in a linefeed). I tried googling around, bu

Answer 1

I will admit to having zero experience with the ruby -e "puts ARGF.read" command you are using after the pipe, but I think I can prove that the pipe doesn't adding a newline.

# check length of string without newline after pipe 
Write-Output "abc" | %{Write-Host "$_ has a length of: $($_.Length)"  }

#check of string with newline length after pipe
Write-Output "def`n" | %{Write-Host "$($_.Length) is the length of $_" -NoNewline }

#write a string without newline (suppressing newline on Write-Host)
Write-Output 'abc' | %{ Write-Host $_ -NoNewline; }

#write a string with newline (suppressing newline on Write-Host)
Write-Output "def`n" | %{ Write-Host $_ -NoNewline; }

#write a final string without newline (suppressing newline on Write-Host)
Write-Output 'ghi' | %{ Write-Host $_ -NoNewline; }

This gives me an output of:

abc has a length of: 3
4 is the length of def
abcdef
ghi

I think you might want to start looking at the ruby -e "put AGRF.read" command and see if it is adding a newline after each read.