is meant to be used in scripts, so its output is designed to be \r
easy to parse.\r
.SH OPTIONS\r
-.IP \fB-a\fR 5\r
+.IP \fB\-a\fR 5\r
Show systems that are alive.\r
-.IP \fB-A\fR 5\r
+.IP \fB\-A\fR 5\r
Display targets by address rather than DNS name.\r
-.IP \fB-b\fIn\fR 5\r
+.IP \fB\-b\fIn\fR 5\r
Number of bytes of ping data to send. The minimum size (normally 12)\r
allows room for the data that \r
.B fping \r
.B ping.\r
Maximum is the theoretical maximum IP datagram size (64K), though most\r
systems limit this to a smaller, system-dependent number.\r
-.IP \fB-B\fIn\fR 5\r
+.IP \fB\-B\fIn\fR 5\r
In the default mode,\r
.B fping\r
sends several requests to a target before giving up, waiting longer for\r
a reply on each successive request. This parameter is the value by\r
which the wait time is multiplied on each successive request; it must\r
be entered as a floating-point number (x.y). The default is 1.5.\r
-.IP \fB-c\fR 5\r
+.IP \fB\-c\fR 5\r
Number of request packets to send to each target. In this mode, a\r
line is displayed for each received response (this can suppressed with\r
--q or -Q). Also, statistics about responses for each target are displayed\r
+\-q or \-Q). Also, statistics about responses for each target are displayed\r
when all requests have been sent (or when interrupted).\r
.IP \fB-C\fR 5\r
-Similar to -c, but the per-target statistics are displayed in a format\r
+Similar to \-c, but the per-target statistics are displayed in a format\r
designed for automated response-time statistics gathering. For\r
example:\r
\r
-% fping -C 5 -q somehost\r
+% fping \-C 5 \-q somehost\r
\r
-somehost : 91.7 37.0 29.2 - 36.8\r
+somehost : 91.7 37.0 29.2 \- 36.8\r
\r
shows the response time in milliseconds for each of the five requests,\r
-with the "-" indicating that no response was received to the fourth\r
+with the "\-" indicating that no response was received to the fourth\r
request.\r
-.IP \fB-d\fR 5\r
+.IP \fB\-d\fR 5\r
Use DNS to lookup address of return ping packet. This allows you to give\r
fping a list of IP addresses as input and print hostnames in the output.\r
-.IP \fB-e\fR 5\r
+.IP \fB\-e\fR 5\r
Show elapsed (round-trip) time of packets.\r
-.IP \fB-f\fR 5\r
+.IP \fB\-f\fR 5\r
Read list of targets from a file. This option can only be used by the\r
root user. Regular users should pipe in the file via stdin:\r
\r
% fping < targets_file\r
\r
-.IP \fB-g\fR 5\r
+.IP \fB\-g\fR 5\r
Generate a target list from a supplied IP netmask, or a starting and ending IP.\r
Specify the netmask or start/end in the targets portion of the command line.\r
\r
ex. To ping the class C 192.168.1.x, the specified command line could look like either:\r
\r
-fping -g 192.168.1.0/24\r
+fping \-g 192.168.1.0/24\r
\r
or\r
\r
fping -g 192.168.1.0 192.168.1.255\r
-.IP \fB-h\fR 5\r
+.IP \fB\-h\fR 5\r
Print usage message.\r
-.IP \fB-i\fIn\fR 5\r
+.IP \fB\-i\fIn\fR 5\r
The minimum amount of time (in milliseconds) between sending a ping packet to any target (default is 25).\r
-.IP \fB-l\fR 5\r
+.IP \fB\-l\fR 5\r
Loop sending packets to each target indefinitely. Can be interrupted\r
with ctl-C; statistics about responses for each target are then displayed.\r
-.IP \fB-m\fR 5\r
+.IP \fB\-m\fR 5\r
Send pings to each of a target host's multiple interfaces.\r
-.IP \fB-n\fR 5\r
-Same as -d.\r
-.IP \fB-p\fR 5\r
-In looping or counting modes (-l, -c, or -C), this parameter sets the\r
+.IP \fB\-n\fR 5\r
+Same as \-d.\r
+.IP \fB\-p\fR 5\r
+In looping or counting modes (\-l, \-c, or \-C), this parameter sets the\r
time in milliseconds that\r
.B fping\r
waits between successive packets to an individual target. Default is\r
1000.\r
-.IP \fB-q\fR 5\r
+.IP \fB\-q\fR 5\r
Quiet. Don't show per-target results, just set final exit status.\r
-.IP \fB-Q\fIn\fR 5\r
-Like -q, but show summary results every n seconds.\r
-.IP \fB-r\fIn\fR 5\r
+.IP \fB\-Q\fIn\fR 5\r
+Like \-q, but show summary results every n seconds.\r
+.IP \fB\-r\fIn\fR 5\r
Retry limit (default 3). This is the number of times an attempt at pinging\r
a target will be made, not including the first try.\r
-.IP \fB-s\fR 5\r
+.IP \fB\-s\fR 5\r
Print cumulative statistics upon exit.\r
-.IP \fB-S\fIaddr\fR 5\r
+.IP \fB\-S\fIaddr\fR 5\r
Set source address.\r
-.IP \fB-I\fIif\fR 5\r
+.IP \fB\-I\fIif\fR 5\r
Set the interface (requires SO_BINDTODEVICE support)\r
-.IP \fB-t\fIn\fR 5\r
+.IP \fB\-t\fIn\fR 5\r
Initial target timeout in milliseconds (default 500). In the default\r
mode, this is the amount of time that \r
.B fping\r
waits for a response to its first request. Successive timeouts are\r
multiplied by the backoff factor.\r
-.IP \fB-T\fIn\fR 5\r
+.IP \fB\-T\fIn\fR 5\r
Ignored (for compatibility with fping 2.4).\r
-.IP \fB-u\fR 5\r
+.IP \fB\-u\fR 5\r
Show targets that are unreachable.\r
-.IP \fB-T\fIn\fR 5\r
+.IP \fB\-T\fIn\fR 5\r
Set the typ of service flag (TOS). \fIn\fR can be either decimal or hexadecimal (0xh) format.\r
-.IP \fB-v\fR 5\r
+.IP \fB\-v\fR 5\r
Print \r
.B fping\r
version information.\r
.SH BUGS\r
Ha! If we knew of any we would have fixed them!\r
.SH RESTRICTIONS\r
-If certain options are used (i.e, a low value for -i and -t, and a \r
-high value for -r) it is possible to flood the network. This program\r
+If certain options are used (i.e, a low value for \-i and \-t, and a \r
+high value for \-r) it is possible to flood the network. This program\r
must be installed as setuid root in order to open up a raw socket,\r
or must be run by root. In order to stop mere mortals from hosing the\r
network (when fping is installed setuid root) , normal users can't specify \r