waitforfile

#!/bin/bash    

fifo_name=$1;
if [ -z "$1" ]; then
  echo "Usage "`basename $0`": <PATH>"
  exit 1
fi
[ -p "$fifo_name" ] || mkfifo "$fifo_name";
chmod a+rw "$fifo_name"

while true; do
    if read line; then
      rm "$fifo_name"
      exit
    fi
done < "$fifo_name"