collect.sh

#!/bin/bash

set -e

keyphrase=$1
folder=$2

if test -z "$keyphrase"; then
  echo 'Keyphrase must not be empty'
  exit
fi

if test -z "$folder"; then
  echo 'Target folder name must not be empty'
  exit
fi

i=0

mkdir -p "$folder"

for file in $(cat index.tsv | grep -i "$keyphrase" | awk '{printf("threads/%s/%08d.txt\n", $NF, $1)}'); do
  cp $file $folder/$(printf "%04d" "$i").txt
  i=$((i + 1))
done