#!/bin/bash

grep ">" test.fasta | sed 's/>//;s/[[:space:]].*//' > test_keys.txt
grep ">" train.fasta | sed 's/>//;s/[[:space:]].*//' > train_keys.txt
grep ">" val.fasta | sed 's/>//;s/[[:space:]].*//' > validate_keys.txt

awk -F',' '
	FILENAME == "test_keys.txt" { test[$1]; next }
	FILENAME == "train_keys.txt" { train[$1]; next }
	FILENAME == "validate_keys.txt" { validate[$1]; next }

	FILENAME == "iiab_db.csv" {
		if (FNR == 1) {
			print $0 > "test_data.csv"
			print $0 > "train_data.csv"
			print $0 > "validate_data.csv"
			next
		}

		if ($1 in test) {
			print $0 >> "test_data.csv"
		} else if ($1 in train) {
			print $0 >> "train_data.csv"
		} else if ($1 in validate) {
			print $0 >> "validate_data.csv"
		}
	}
' test_keys.txt train_keys.txt validate_keys.txt iiab_db.csv

head -n 5 test_keys.txt

rm test_keys.txt train_keys.txt validate_keys.txt