I wrote a the following script which works with problems
--------------------------------------------------------------------------------------
sqlplus -s < sqlplus /nolog
conn /as sysdba
startup
exit
EOF
--------------------------------------------------------------------------------------

It gives the following problem

ERROR:
ORA-01034: ORACLE not available
ORA-27101: shared memory realm does not exist
Linux Error: 2: No such file or directory

ORACLE instance started.

Total System Global Area 336356520 bytes
Fixed Size 279720 bytes
Variable Size 268435456 bytes
Database Buffers 67108864 bytes
Redo Buffers 532480 bytes
Database mounted.
Database opened.


Now what can be the problem as I am not machine with 512 m RAM. I searched on error code but there is no good answer about startups.. Why is it creating problems.

Amol