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><H1
CLASS="SECT1"
><A
NAME="CMDLINE"
>Command-line Options</A
></H1
> IPTraf has a few optional command-line parameters. As with most UNIX
 commands, IPTraf command-line parameters are
case-sensitive (<TT
CLASS="COMPUTEROUTPUT"
>-l</TT
>
 is NOT the same as <TT
CLASS="COMPUTEROUTPUT"
>-L</TT
>). The following command-line parameters can be supplied
to the iptraf command:<DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-i <TT
CLASS="REPLACEABLE"
>iface</TT
></TT
></DT
><DD
> causes the IP traffic monitor to start immediately on the specified interface.
 If -i all is specified, all interfaces are monitored.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-g</TT
></DT
><DD
> starts the general interface statistics</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-d <TT
CLASS="REPLACEABLE"
>iface</TT
></TT
></DT
><DD
> shows detailed statistics for the specified interface</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-s <TT
CLASS="REPLACEABLE"
>iface</TT
></TT
></DT
><DD
> starts the TCP/UDP traffic monitor for the specified interface</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-z <TT
CLASS="REPLACEABLE"
>iface</TT
></TT
></DT
><DD
> starts the packet size breakdown for the specified interface</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-l <TT
CLASS="REPLACEABLE"
>iface</TT
></TT
></DT
><DD
> starts the LAN station monitor on the specified interface. If
<TT
CLASS="COMPUTEROUTPUT"
>-l all</TT
> is specified, all LAN interfaces are monitored.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-t <TT
CLASS="REPLACEABLE"
>timeout</TT
></TT
></DT
><DD
> The <TT
CLASS="COMPUTEROUTPUT"
>-t</TT
> parameter, when used with one
 of the other parameters that specify a facility to start, tells
 IPTraf to run the indicated facility for only timeout
 minutes, after which the facility
 exits. The <TT
CLASS="COMPUTEROUTPUT"
>-t</TT
> parameter is ignored in menu
 mode. If this parameter is not specified, the facility runs until the
 exit keystroke is pressed.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-B</TT
></DT
><DD
> Redirects all terminal output to the "bit bucket"
<TT
CLASS="FILENAME"
>/dev/null</TT
>, closes standard input, and
places the program in the background. This parameter can be used only with
one of the <TT
CLASS="COMPUTEROUTPUT"
>-i</TT
>, <TT
CLASS="COMPUTEROUTPUT"
>-g</TT
>,
<TT
CLASS="COMPUTEROUTPUT"
>-d</TT
>,
<TT
CLASS="COMPUTEROUTPUT"
>-s</TT
>, <TT
CLASS="COMPUTEROUTPUT"
>-z</TT
>, or
<TT
CLASS="COMPUTEROUTPUT"
>-l</TT
> parameters. See
<A
HREF="backop.html"
>Background Operation</A
> in Chapter 9. <TT
CLASS="COMPUTEROUTPUT"
>-B</TT
> is ignored in menu
mode.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-L <TT
CLASS="REPLACEABLE"
>filename</TT
></TT
></DT
><DD
> Allows you to specify an alternate log file name when the
 any facility is directly started from the command line, whether in foreground or
 background mode. If specified in foreground mode, the log filename prompt is
 bypassed, even when logging is turned on in the Configure...
 menu. If this parameter is omitted in background mode, the default log filename
 is used. This parameter always turns on logging. If an absolute path is not specified, the log
 file will be created in the default log file directory</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-I <TT
CLASS="REPLACEABLE"
>interval</TT
></TT
></DT
><DD
> Sets the logging interval (in minutes) when the <TT
CLASS="COMPUTEROUTPUT"
>-L</TT
> parameter is
 used. This overrides the Log interval... setting in the Configure...
 menu. If omitted, the configured value is used. This parameter is ignored when the
 <TT
CLASS="COMPUTEROUTPUT"
>-L</TT
> parameter is omitted and logging is disabled. The value specified here will affect all facilities except for the IP traffic monitor.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-q</TT
></DT
><DD
> Previously used to suppress the warning screen when IPTraf is run
 on kernels with IP masquerading. Since the masquerading
 code now processes packets in a way better suited to raw capture,
 this parameter is no longer needed and is retained only for
 compatibility.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>-f</TT
></DT
><DD
> Forces IPTraf to clear all lock files and reset all instance counters
 to zero before running any facilities. IPTraf will then think
 it's the first instance of itself. The <TT
CLASS="COMPUTEROUTPUT"
>-f</TT
> parameter overrides the
 existing locks and counters imposed by the IPTraf process and
 by the various facilities, causing this instance to think it is the
 first and that there are no other facilities running. Use
 this parameter with great caution. A common use for this parameter is
 to recover from abrupt or abnormal terminations which may leave stale
 locks and counters still lying around. The <TT
CLASS="COMPUTEROUTPUT"
>-f</TT
> parameter may be used together with the others.</DD
><DT
><TT
CLASS="COMPUTEROUTPUT"
>iptraf -h</TT
></DT
><DD
> displays a short help screen</DD
></DL
></DIV
> While the command-line options are case-sensitive, interactive keystroke
 at the IPTraf full-screen interface are not.</DIV
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