From: Francois-Xavier Le Bail <devel.fx.lebail@orange.fr>
Date: Sat, 21 Oct 2023 06:33:07 +0000 (+0200)
Subject: man: Fix an example by quoting a filter expression
X-Git-Tag: tcpdump-4.99.5~162
X-Git-Url: https://git.tcpdump.org/tcpdump/commitdiff_plain/d35e4bf44447a68fb45caa8d048b4b2511be944e?ds=sidebyside

man: Fix an example by quoting a filter expression

It's to prevent the shell from (mis-)interpreting the square brackets.

e.g. if there is a file named tcp1 in the current directory,
with tcp[13] == 2, the executed command will be:
tcpdump -i xl0 tcp1 == 2
Result: tcpdump: can't parse filter expression: syntax error

(cherry picked from commit 5db1dbf206cadf0d063334fa849746f74e42c588)

[skip ci]
---

diff --git a/tcpdump.1.in b/tcpdump.1.in
index 79be0344..fc9d4706 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  "09 Sep 2023"
+.TH TCPDUMP 1  "21 October 2023"
 .SH NAME
 tcpdump \- dump traffic on a network
 .SH SYNOPSIS
@@ -1508,7 +1508,7 @@ We can use this expression as the filter for \fItcpdump\fP in order
 to watch packets which have only SYN set:
 .RS
 .B
-tcpdump -i xl0 tcp[13] == 2
+tcpdump -i xl0 'tcp[13] == 2'
 .RE
 .PP
 The expression says "let the 13th octet of a TCP datagram have