#!/bin/bash
directory=$1
output_directory=$2

for filename in "$directory/"*.gz; 
do
        new_filename=$output_directory"/"`basename "$filename"`
        echo $new_filename
        gzip -cd $filename | awk -v OFS="\t" '{print $1,$2,$3,$6}' | sort -k1,1 -k2,2n | gzip > $new_filename
done

