SOLVED:
The following are the simplest possible examples of functions/scripts that use piped input. Each behaves the same as piping to the "echo" cmdlet.
As functions:
Function Echo-Pipe {
Begin {
# Executes once before first item in pipeline is processed
}
Process {
# Executes once for each pipeline object
echo $_
}
End {
# Executes once after last pipeline object is processed
}
}
Function Echo-Pipe2 {
foreach ($i in $input) {
$i
}
}
As Scripts:
# Echo-Pipe.ps1 Begin {
# Executes once before first item in pipeline is processed
}
Process {
# Executes once for each pipeline object
echo $_
}
End {
# Executes once after last pipeline object is processed
}
# Echo-Pipe2.ps1
foreach ($i in $input) {
$i
}
E.g.
PS > . theFileThatContainsTheFunctions.ps1 # This includes the functions into your session
PS > echo "hello world" | Echo-Pipe
hello world
PS > cat aFileWithThreeTestLines.txt | Echo-Pipe2
The first test line
The second test line
The third test line