#/bin/bash

if [[ "$1" ]]; then

 FILE=/media/solyom/$1/bigfile

 if [[ -f "$FILE" ]]; then
  rm "$FILE" 
 fi
 
 echo "Write BigFile to $1"
 dd if=/dev/zero of="$FILE" bs=1M count=512 status=progress

 echo ""
 echo "Clear cache"
 echo ""
 sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"

 echo "Read BigFile from $1"
 dd if="$FILE" of=/dev/null bs=4k status=progress
 
 if [[ -f "$FILE" ]]; then
  rm "$FILE" 
 fi
 
fi

