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# DP: Document handling of parameters of the test builtin.
--- a/builtins/test.def
+++ b/builtins/test.def
@@ -100,6 +100,9 @@ Arithmetic binary operators return true
less-than, less-than-or-equal, greater-than, or greater-than-or-equal
than ARG2.
+See the bash manual page bash(1) for the handling of parameters (i.e.
+missing parameters).
+
Exit Status:
Returns success if EXPR evaluates to true; fails if EXPR evaluates to
false or an invalid argument is given.
--- a/doc/bash.1
+++ b/doc/bash.1
@@ -726,6 +726,10 @@ as primaries.
.if n .sp 1
When used with \fB[[\fP, the \fB<\fP and \fB>\fP operators sort
lexicographically using the current locale.
+.PP
+See the description of the \fItest\fP builtin command (section SHELL
+BUILTIN COMMANDS below) for the handling of parameters (i.e.
+missing parameters).
.if t .sp 0.5
.if n .sp 1
When the \fB==\fP and \fB!=\fP operators are used, the string to the
--- a/doc/bashref.texi
+++ b/doc/bashref.texi
@@ -6855,6 +6855,10 @@ The @code{test} command uses ASCII order
Unless otherwise specified, primaries that operate on files follow symbolic
links and operate on the target of the link, rather than the link itself.
+See the description of the @code{test} builtin command (section
+@pxref{Bash Builtins} below) for the handling of parameters
+(i.e. missing parameters).
+
@table @code
@item -a @var{file}
True if @var{file} exists.
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