--- bash-3.1/doc/bash.1.253673	2007-08-14 19:03:29.000000000 +0900
+++ bash-3.1/doc/bash.1	2007-08-14 19:03:45.000000000 +0900
@@ -5978,6 +5978,11 @@
 is supplied, the name and value of the alias is printed.
 \fBAlias\fP returns true unless a \fIname\fP is given for which
 no alias has been defined.
+.sp 1
+Note aliases are not expanded by default in non-interactive shell, and it can be enabled by setting the
+.B expand_aliases
+shell option using
+.BR shopt .
 .TP
 \fBbg\fP [\fIjobspec\fP ...]
 Resume each suspended job \fIjobspec\fP in the background, as if it