How do I calculate total number of active and non active hosts?
Code:
#!/bin/bash
for digit in $(seq 1 10)
do
if ping -c1 -w2 192.168.1.$digit &> /dev/null
then
echo "192.168.1.$digit is UP"
else
echo "192.168.1.$digit is DOWN"
fi
done
Last edited by Scrutinizer; 01-27-2013 at 06:56 AM..
Reason: code tags
Hey,
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Discussion started by: ron323232
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LEARN ABOUT DEBIAN
vde_tunctl
VDE_TUNCTL(8) System Manager's Manual VDE_TUNCTL(8)NAME
vde_tunctl -- create and manage persistent TUN/TAP interfaces
SYNOPSIS
vde_tunctl [-f tun-clone-device] [-u owner] [-t device-name]
vde_tunctl [-f tun-clone-device] -d device-name
DESCRIPTION
vde_tunctl allows the host sysadmin to preconfigure a TUN/TAP device for use by a particular user. That user may open and use the device,
but may not change any aspects of the host side of the interface.
vde_tunctl is a simple copy of tunctl done for practical purposes.
USAGE
To create an interface for use by a particular user, invoke tunctl without the -d option:
# vde_tunctl -u someuser
Set 'tap0' persistent and owned by uid 500
Then, configure the interface as normal:
# ifconfig tap0 192.168.0.254 up
# route add -host 192.168.0.253 dev tap0
# bash -c 'echo 1 > /proc/sys/net/ipv4/conf/tap0/proxy_arp'
# arp -Ds 192.168.0.253 eth0 pub
To delete the interface, use the -d option:
# vde_tunctl -d tap0
Set 'tap0' nonpersistent
SEE ALSO vde_switch(1)vde_plug2tap(1)AUTHOR
tunctl was written by Jeff Dike jdike@karaya.com
This manual page is based on tunctl manual page written by Matt Zimmerman mdz@debian.org for the Debian GNU/Linux system.
VDE_TUNCTL(8)