write_tsv

File write_tsv(Array[Array[String]])

Writes a tab-separated value (TSV) file with one line for each element in a Array[Array[String]]. Each element is concatenated into a single tab-delimited string. Each line is terminated by the newline (\n) character. If the Array is empty, an empty file is written.

Parameters

1. Array[Array[String]]: An array of rows, where each row is an array of column values.

Returns: A File.

Example: write_tsv_task.wdl

version 1.1

task write_tsv {
  input {
    Array[Array[String]] array = [["one", "two", "three"], ["un", "deux", "trois"]]
  }

  command <<<
    cut -f 1 ~{write_tsv(array)}
  >>>

  output {
    Array[String] ones = read_lines(stdout())
  }

  runtime {
    container: "ubuntu:latest"
  }
}

{}

{
  "write_tsv.ones": ["one", "un"]
}

The actual command line might look like:

cut -f 1 /local/fs/tmp/array.tsv

And /local/fs/tmp/array.tsv would contain:

one\ttwo\tthree
un\tdeux\ttrois