svrmgrl is server Manager tool.
Microsoft Windows 2000 [Version 5.00.2195]
(C) Copyright 1985-2000 Microsoft Corp.
C:>svrmngrl
'svrmngrl' is not recognized as an internal or external command,
operable program or batch file.
C:>svrmgrl
Oracle Server Manager Release 3.1.6.0.0 - Production
Copyright (c) 1997, 1999, Oracle Corporation. All Rights Reserved.
Oracle8i Enterprise Edition Release 8.1.6.0.0 - Production
With the Partitioning option
JServer Release 8.1.6.0.0 - Production
SVRMGR> connect internal
Connected.
SVRMGR> shutdown
Database closed.
Database dismounted.
ORACLE instance shut down.
SVRMGR> startup
ORACLE instance started.
Total System Global Area 176182540 bytes
Fixed Size 70924 bytes
Variable Size 156504064 bytes
Database Buffers 19529728 bytes
Redo Buffers 77824 bytes
Database mounted.
Database opened.
SVRMGR>