nsbin/isonline

#!/bin/sh
# 
# 2004      Nico Schottelius (nico-nsbin at schottelius.org)
# 
# This file is part of nsbin.
#
# nsbin is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# nsbin is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with nsbin. If not, see <http://www.gnu.org/licenses/>.
#
#
# Check, whether host is reachable
#

if [ $# -lt 1 ]; then
   echo "`basename $0`"' host(s)'
   exit 1
fi   

# how many times to try
COUNT="5"

for host in $@; do
   ping_result="not reachable."
   echo -n "Testing if host $host is reachable: "
   ping -c $COUNT $host &>/dev/null && ping_result="reachable."
   echo $ping_result
done