doc/man: add notes about shell escaping

[lttng-tools.git] / doc / man / lttng-enable-event.1.txt

diff --git a/doc/man/lttng-enable-event.1.txt b/doc/man/lttng-enable-event.1.txt
index 4d88bdb1b6d37480287c796d1ba92c97942f7db6..f33507cec4685bd85f1151ae97597305ecf72827 100644 (file)
--- a/doc/man/lttng-enable-event.1.txt
+++ b/doc/man/lttng-enable-event.1.txt
@@ -180,6 +180,10 @@ when creating a new event rule. If the filter expression evaluates
 to true when executed against the dynamic values of an event's fields
 when tracing, the filtering condition passes.
 
+NOTE: Make sure to **single-quote** the filter expression when running
+the command from a shell, as filter expressions typically include
+characters having a special meaning for most shells.
+
 The filter expression syntax is very similar to C language conditional
 expressions (expressions that can be evaluated by an `if` statement).