read_float

Float read_float(File)

Reads a file that contains only a numeric value and (optional) whitespace. If the line contains a valid floating point number, that value is returned as a Float. If the file is empty or does not contain a single float, an error is raised.

Parameters

1. File: Path of the file to read.

Returns: A Float.

Example: read_float_task.wdl

version 1.2

task read_float {
  command <<<
  printf "  1  \n" > int_file
  printf "  2.0  \n" > float_file
  >>>

  output {
    Float f1 = read_float("int_file")
    Float f2 = read_float("float_file")
  }
}

{}

{
  "read_float.f1": 1.0,
  "read_float.f2": 2.0
}