NAME
ping - probe for network hosts
SYNOPSIS
ping [-n] hostname [ timeout ]
DESCRIPTION
ping
looks up hostname and then attempts to contact it via the network. If the effective userid permits an ICMP (Internet Control Message Protocol) ECHO_REQUEST packet is sent, otherwise and attempt is made to connect to the echo port using UDP protocol.
A timeout may be specified in seconds. The default is 20 seconds.
If -n
option is specified then the address of hostname is reported as numbers.
AUTHOR
Nick Ing-Simmons <nick@ni-s.u-net.com>