unix: take host list from stdin and check ping

isalive

#!/bin/bash
# take a list of hosts by stdin and ping them

while read line; do
    RESULT=`ping -c1 $line >/dev/null 2>&1 || echo 'fail'`
    if [ "$RESULT" = "" ]; then
        RESULT="pass"
    fi
    echo "$line -> $RESULT"
done