Shell Programming and Scripting

10.x.x.x is pining
 10.x.x.x. is not pining
 -
 -
 -
 10.x.x.x is pining

 !/bin/bash
 while read line 
 do
 ping -c 1 $line &> /dev/null
 if [ $? -eq 0 ]; then
     echo "$line is pinging"
 else
     echo "$line is not pining"
 done < IP_list

while read line 
do
if [[ -n  $(ping -c1 $line 2>/dev/null) ]] 
then
    echo "$line is pinging"
else
    echo "$line is not pinging"
fi
done < "Input_file"

while read ip; do
    ping -c1 "$ip" &>/dev/null && echo $ip success || echo $ip fail
done < "Input_file"

( for i in 10.1.1.{1..254} ; do ( ping -n -c 1 -w 1 $i &>/dev/null && printf "%-16s %s\n" $i responded ) & done ; wait )
10.1.1.1         responded
10.1.1.xx        responded
10.1.1.xx        responded

#!/bin/bash
cnt=0;
while read line 
do
  [ $((cnt++)) -eq 10 ] && cnt=0 && wait
  {
  ping -c 1 $line &> /dev/null
  if [ $? -eq 0 ]; then  
     echo "$line is pinging"  
  else
      echo "$line is not pining"
  fi
  } &
done < IP_list
wait

 ./ping_fast.sh: line 12: syntax error near unexpected token `}'
./ping_fast.sh: line 12: `   }& '

fping < IP_list