Starting and Stopping SAP NetWeaver ABAP on UNIX 
Procedure
Proceed as follows to start and stop SAP NetWeaver ABAP on UNIX:
Starting
Log on to the host of your central system as the SAP administrator <sid>adm.
Enter startsap ALL to start SAP NetWeaver ABAP.
The database, the ABAP instances, and all other processes for your system are started on this host.
In the case of an add-in installation (ABAP + Java), the Java instances are automatically started together with the corresponding ABAP instances.
Stopping
Log on to the host of your central system as the SAP administrator <sid>adm.
Enter stopsap R3 to stop SAP NetWeaver ABAP.
In the case of an add-in installation (ABAP + Java), the Java instances are automatically stopped together with the corresponding ABAP instances.
NoteThe stopsap command with the R3 switch does not stop the database simultaneously. If you want to stop the database simultaneously, use the command stopsap or stopsap ALL.
End of the note.