ping命令的究极升华版，从事网络者必备开源工具GPing

$ gping --helpgping 1.3.2Ping, but with a graph.USAGE:    gping [FLAGS] [OPTIONS] <hosts-or-commands>...FLAGS:        --cmd                Graph the execution time for a list of commands rather than pinging hosts    -h, --help               Prints help information    -4                       Resolve ping targets to IPv4 address    -6                       Resolve ping targets to IPv6 address    -s, --simple-graphics    Uses dot characters instead of braille    -V, --version            Prints version informationOPTIONS:    -b, --buffer <buffer>            Determines the number of seconds to display in the graph. [default: 30]    -c, --color <color>...            Assign color to a graph entry. This option can be defined more than once and the order which the colors are            provided will be matched against the hosts or commands passed to gping. Hexadecimal RGB color codes are            accepted in the form of '#RRGGBB' or the following color names: 'black', 'red', 'green', 'yellow', 'blue',            'magenta', 'cyan', 'gray', 'dark-gray', 'light-red', 'light-green', 'light-yellow', 'light-blue', 'light-            magenta', 'light-cyan', and 'white'        --horizontal-margin <horizontal-margin>    Horizontal margin around the graph (left and right) [default: 0]        --vertical-margin <vertical-margin>        Vertical margin around the graph (top and bottom) [default: 1]    -n, --watch-interval <watch-interval>            Watch interval seconds (provide partial seconds like '0.5'). Default for ping is 0.2, default for cmd is            0.5.ARGS:    <hosts-or-commands>...    Hosts or IPs to ping, or commands to run if --cmd is provided.