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-rw-r--r--doc/usage/cmd/echo.rst3
1 files changed, 3 insertions, 0 deletions
diff --git a/doc/usage/cmd/echo.rst b/doc/usage/cmd/echo.rst
index 861abdfd1e..ebc9ff5f84 100644
--- a/doc/usage/cmd/echo.rst
+++ b/doc/usage/cmd/echo.rst
@@ -1,3 +1,6 @@
+.. index::
+ single: echo (command)
+
echo command
============