#!/bin/sh

# Prepare all waveform data for MATLAB processing.
#
# This script will:
# 1.	sanitise the header before running MATLAB's readtable();
# 2.	convert line endings from DOS to UNIX; and
# 3.	rename files to have *.tsv file extensions.
#
# This script assumes all waveform data is tab-delimited and
# stored in *.txt files.
#
# Usage: ./prep.sh

files=$(ls -- *.txt)

for i in $files; do
	printf "Preparing %s\n" "$i"

	# Replace the header and convert DOS line endings (CRLF)
	# to UNIX line endings (LF).
	sed -i -e "1c time\tv1\tv2\tv3\ti1\ti2\ti3" -e "s/\x1D$//" "$i"

	# Rename files to have TSV extensions.
	mv "$i" "${i%.*}.tsv"
done