Added echo(1).

utils/Makefile

@@ -7,6 +7,7 @@ LOCALBINARIES:=\
 init \
 cat \
 cp \
+echo \
 rm \
 sh \
 mxsh \

utils/echo.cpp

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char* argv[])
+{
+	int startfrom = 1;
+	bool trailingnewline = true;
+	if ( 1 < argc && strcmp(argv[1], "-n") == 0 )
+	{
+		trailingnewline = false;
+		startfrom = 2;
+	}
+
+	const char* prefix = "";
+	for ( int i = startfrom; i < argc; i++ )
+	{
+		printf("%s%s", prefix, argv[i]);
+		prefix = " ";
+	}
+
+	if ( trailingnewline ) { printf("\n"); }
+
+	return 0;
+}