X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/35a1310799bfba288223980916859db4193c68d6..a8c33a5850cd9d2f39e56c06b645c283225d78c4:/tcpdump.1.in

diff --git a/tcpdump.1.in b/tcpdump.1.in
index 984c1964..c977e06f 100644
--- a/tcpdump.1.in
+++ b/tcpdump.1.in
@@ -20,7 +20,7 @@
 .\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
 .\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 .\"
-.TH TCPDUMP 1  "8 April 2018"
+.TH TCPDUMP 1  "2 Apr 2019"
 .SH NAME
 tcpdump \- dump traffic on a network
 .SH SYNOPSIS
@@ -478,6 +478,19 @@ The supported values for \fItimestamp_precision\fP are \fBmicro\fP for
 microsecond resolution and \fBnano\fP for nanosecond resolution.  The
 default is microsecond resolution.
 .TP
+.B \-\-micro
+.PD 0
+.TP
+.B \-\-nano
+.PD
+Shorthands for \fB\-\-time\-stamp\-precision=micro\fP or
+\fB\-\-time\-stamp\-precision=nano\fP, adjusting the time stamp
+precision accordingly.  When reading packets from a savefile, using
+\fB\-\-micro\fP truncates time stamps if the savefile was created with
+nanosecond precision.  In contrast, a savefile created with microsecond
+precision will have trailing zeroes added to the time stamp when
+\fB\-\-nano\fP is used.
+.TP
 .B \-K
 .PD 0
 .TP
@@ -1902,7 +1915,9 @@ stty(1), pcap(3PCAP), bpf(4), nit(4P), \%pcap-savefile(@MAN_FILE_FORMATS@),
 \%pcap-filter(@MAN_MISC_INFO@), \%pcap-tstamp(@MAN_MISC_INFO@)
 .LP
 .RS
-.I http://www.iana.org/assignments/media-types/application/vnd.tcpdump.pcap
+.na
+.I https://www.iana.org/assignments/media-types/application/vnd.tcpdump.pcap
+.ad
 .RE
 .LP
 .SH AUTHORS