+extern const struct cmd_group replace_cmd_group;
+extern const struct cmd_group rescue_cmd_group;
+
+extern const char * const cmd_send_usage[];
+extern const char * const cmd_receive_usage[];
+extern const char * const cmd_check_usage[];
+extern const char * const cmd_chunk_recover_usage[];
+extern const char * const cmd_super_recover_usage[];
+extern const char * const cmd_restore_usage[];
+extern const char * const cmd_rescue_usage[];
+extern const char * const cmd_inspect_dump_super_usage[];
+extern const char * const cmd_inspect_dump_tree_usage[];
+extern const char * const cmd_inspect_tree_stats_usage[];
+extern const char * const cmd_filesystem_du_usage[];
+extern const char * const cmd_filesystem_usage_usage[];