SQL> startup pfile='/u01/app/oracle/admin/test/pfile/init.ora' nomount
ORA-01261: Parameter db_recovery_file_dest destination string cannot be translated
ORA-01262: Stat failed on a file destination directory
Linux Error: 2: No such file or directory

SQL> @/u01/app/oracle/admin/test/script/createdb.sql
create database test
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced

bcm@bcm-laptop:~$ oerr ora 1092
01092, 00000, "ORACLE instance terminated. Disconnection forced"
// *Cause:  The instance this process was connected to was terminated
//	    abnormally, probably via a shutdown abort. This process
//	    was forced to disconnect from the instance.
// *Action: Examine the alert log for more details. When the instance has been 
//          restarted, retry action.

Errors in file /u01/app/oracle/admin/test/udump/test_ora_5596.trc:
ORA-01501: CREATE DATABASE failed
ORA-01519: error while processing file '?/rdbms/admin/sql.bsq' near line 6403
ORA-00604: error occurred at recursive SQL level 2
ORA-30036: unable to extend segment by 8 in undo tablespace 'UNDOTBS1'
Error 1519 happened during db open, shutting down database
USER: terminating instance due to error 1519


Instance terminated by USER, pid = 5596
ORA-1092 signalled during: create database test
datafile '/u01/app/oracle/oradata/test/system.dbf' size 400m
sysaux
datafile '/u01/app/oracle/oradata/test/sysaux.dbf' size 400m
logfile
group 1 '/u01/app/oracle/oradata/test/redo1.log' size 15m,
group 2 '/u01/app/oracle/oradata/test/redo2.log' size 15m
undo tablespace undotbs1
datafile '/u01/app/oracle/oradata/test/undotbs1.dbf' size 1m
default temporary tablespace temp
tempfile '/u01/app/oracle/oradata/test/temp.dbf' size 100m
character set AL32UTF8...

create database test 
datafile '/u01/app/oracle/oradata/test/system.dbf' size 400m 
sysaux 
datafile '/u01/app/oracle/oradata/test/sysaux.dbf' size 400m 
logfile 
group 1 '/u01/app/oracle/oradata/test/redo1.log' size 15m, 
group 2 '/u01/app/oracle/oradata/test/redo2.log' size 15m 
undo tablespace undotbs1 
datafile '/u01/app/oracle/oradata/test/undotbs1.dbf' size 1m 
default temporary tablespace temp 
tempfile '/u01/app/oracle/oradata/test/temp.dbf' size 100m 
character set AL32UTF8; 

CREATE DATABASE mynewdb
   USER SYS IDENTIFIED BY pz6r58
   USER SYSTEM IDENTIFIED BY y1tz5p
   LOGFILE GROUP 1 ('/u01/oracle/oradata/mynewdb/redo01.log') SIZE 100M,
           GROUP 2 ('/u01/oracle/oradata/mynewdb/redo02.log') SIZE 100M,
           GROUP 3 ('/u01/oracle/oradata/mynewdb/redo03.log') SIZE 100M
   MAXLOGFILES 5
   MAXLOGMEMBERS 5
   MAXLOGHISTORY 1
   MAXDATAFILES 100
   MAXINSTANCES 1
   CHARACTER SET US7ASCII
   NATIONAL CHARACTER SET AL16UTF16
   DATAFILE '/u01/oracle/oradata/mynewdb/system01.dbf' SIZE 325M REUSE
   EXTENT MANAGEMENT LOCAL
   SYSAUX DATAFILE '/u01/oracle/oradata/mynewdb/sysaux01.dbf' SIZE 325M REUSE
   DEFAULT TABLESPACE tbs_1
   DEFAULT TEMPORARY TABLESPACE tempts1
      TEMPFILE '/u01/oracle/oradata/mynewdb/temp01.dbf' 
      SIZE 20M REUSE
   UNDO TABLESPACE undotbs 
      DATAFILE '/u01/oracle/oradata/mynewdb/undotbs01.dbf'
      SIZE 200M REUSE AUTOEXTEND ON MAXSIZE UNLIMITED;

Thank you for your replies.  Now i am facing new issue. I think three times i used startup pfile command. 
At that time i changed (pfile) from  inittest.ora to init.ora
here dbs directory using inittest.ora file not my new init.ora file. 
Actually that file renamed as init.ora from inittest.ora
ADMIN >> PFILE >> init.ora

SQL> shutdown immediate

 Database closed.
 Database dismounted.
 ORACLE instance shut down.

SQL> startup restrict
 
 ORA-01078: failure in processing system parameters
 LRM-00109: could not open parameter file '/u01/app/oracle/product/10.2.0/db_1/db s/inittest.ora'

SQL> startup restrict pfile='/u01/app/oracle/product/10.2.0/db_1/dbs/init.ora'
ORA-00371: not enough shared pool memory, should be atleast 62198988 bytes