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-rw-r--r--src/nix-store/help.txt9
1 files changed, 7 insertions, 2 deletions
diff --git a/src/nix-store/help.txt b/src/nix-store/help.txt
index 14b83a06ca9e..bdd1b644b0d1 100644
--- a/src/nix-store/help.txt
+++ b/src/nix-store/help.txt
@@ -16,8 +16,13 @@ Operations:
 
   --gc: run the garbage collector
 
-  --dump: dump a path as a Nix archive
-  --restore: restore a path from a Nix archive
+  --dump: dump a path as a Nix archive, forgetting dependencies
+  --restore: restore a path from a Nix archive, without
+      registering validity
+
+  --export: export a path as a Nix archive, marking dependencies
+  --import: import a path from a Nix archive, and register as 
+      valid
 
   --init: initialise the Nix database
   --verify: verify Nix structures