linux-kernel - [tip:perf/core] kprobetrace, doc: Shell needs single quote to use $ character

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Message-ID: <tip-580d9e00fdfb85e65c5097dcd739c6efcdbadc96@git.kernel.org>
Date:	Wed, 20 Jan 2010 07:12:38 GMT
From:	tip-bot for Motohiro KOSAKI <kosaki.motohiro@...fujitsu.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	dle-develop@...ts.sourceforge.net, tglx@...utronix.de,
	kosaki.motohiro@...fujitsu.com, mhiramat@...hat.com, mingo@...e.hu,
	systemtap@...rces.redhat.com
Subject: [tip:perf/core] kprobetrace, doc: Shell needs single quote to use $ character

Commit-ID:  580d9e00fdfb85e65c5097dcd739c6efcdbadc96
Gitweb:     http://git.kernel.org/tip/580d9e00fdfb85e65c5097dcd739c6efcdbadc96
Author:     Motohiro KOSAKI <kosaki.motohiro@...fujitsu.com>
AuthorDate: Mon, 18 Jan 2010 21:35:05 -0500
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Wed, 20 Jan 2010 07:18:14 +0100

kprobetrace, doc: Shell needs single quote to use $ character

Shell interprets $val as shell variable, thus we need quote if
we use the echo command.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Signed-off-by: Masami Hiramatsu <mhiramat@...hat.com>
Cc: systemtap <systemtap@...rces.redhat.com>
Cc: DLE <dle-develop@...ts.sourceforge.net>
LKML-Reference: <20100119023505.31880.17367.stgit@...alhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 Documentation/trace/kprobetrace.txt |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt
index f30978e..ab57f02 100644
--- a/Documentation/trace/kprobetrace.txt
+++ b/Documentation/trace/kprobetrace.txt
@@ -79,7 +79,7 @@ Usage examples
 To add a probe as a new event, write a new definition to kprobe_events
 as below.
 
-  echo p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack) > /sys/kernel/debug/tracing/kprobe_events
+  echo 'p:myprobe do_sys_open dfd=%ax filename=%dx flags=%cx mode=+4($stack)' > /sys/kernel/debug/tracing/kprobe_events
 
  This sets a kprobe on the top of do_sys_open() function with recording
 1st to 4th arguments as "myprobe" event. Note, which register/stack entry is
@@ -88,7 +88,7 @@ the ABI, please try to use probe subcommand of perf-tools (you can find it
 under tools/perf/).
 As this example shows, users can choose more familiar names for each arguments.
 
-  echo r:myretprobe do_sys_open $retval >> /sys/kernel/debug/tracing/kprobe_events
+  echo 'r:myretprobe do_sys_open $retval' >> /sys/kernel/debug/tracing/kprobe_events
 
  This sets a kretprobe on the return point of do_sys_open() function with
 recording return value as "myretprobe" event.
--
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