Open a file using iA Writer.app, for those who don't want to have to leave the command line to open markdown files.

writer

#! /usr/bin/env bash

# Touch any files that don't exist
for file in "$@"
do
	echo "$file"
	if [ ! -a "$file" ]; then
		touch "${file}"
	fi
	if [ ! -w "$file" ] || [ ! -r "$file" ]; then
		echo "writer: error: ${file} can't be opened for reading and writing" >&2
		exit 1
	fi
done

# Pass it on to Writer.app
open -a "iA Writer" "$@"