ping check - simple bash script to ping host list from file

pingcheck.sh

#!/bin/bash

# googling 
#  "bash read line by line from file"
# gave me this:
#  http://stackoverflow.com/questions/10929453/bash-scripting-read-file-line-by-line

# file which contains one hostname or ip per line
FILENAME="hosts"

while IFS='' read -r LINE || [[ -n "$LINE" ]]; do
    echo "Checking $LINE"
    ping -c 1 $LINE

done < "$FILENAME"