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//opt/alt/ruby18/share/ri/1.8/system/Ping/cdesc-Ping.yaml
--- !ruby/object:RI::ClassDescription attributes: [] class_methods: [] comment: - !ruby/struct:SM::Flow::P body: Ping contains routines to test for the reachability of remote hosts. Currently the only routine implemented is pingecho(). - !ruby/struct:SM::Flow::P body: Ping.pingecho uses a TCP echo (not an ICMP echo) to determine if the remote host is reachable. This is usually adequate to tell that a remote host is available to telnet, ftp, or ssh to. - !ruby/struct:SM::Flow::P body: "Warning: Ping.pingecho may block for a long time if DNS resolution is slow. Requiring 'resolv-replace' allows non-blocking name resolution." - !ruby/struct:SM::Flow::P body: "Usage:" - !ruby/struct:SM::Flow::VERB body: " require 'ping'\n\n puts "'jimmy' is alive and kicking" if Ping.pingecho('jimmy', 10)\n" constants: [] full_name: Ping includes: [] instance_methods: - !ruby/object:RI::MethodSummary name: pingecho name: Ping superclass:
