Using sed to backup file and remove lines

[oracle@racnode-dc1-2 ~]$ cd /u01/app/oracle/12.1.0.2/db1/rdbms/log/

--- DDL will fail since datafile is hard coded!
[oracle@racnode-dc1-2 log]$ cat tablespaces_ddl.sql
-- CONNECT SYS
ALTER SESSION SET EVENTS '10150 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10904 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '25475 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10407 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10851 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '22830 TRACE NAME CONTEXT FOREVER, LEVEL 192 ';
-- new object type path: DATABASE_EXPORT/TABLESPACE
CREATE UNDO TABLESPACE "UNDOTBS1" DATAFILE
  SIZE 26214400
  AUTOEXTEND ON NEXT 5242880 MAXSIZE 32767M
  BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE;

   ALTER DATABASE DATAFILE
  '+DATA/HAWK/DATAFILE/undotbs1.260.962253853' RESIZE 152043520;
CREATE TEMPORARY TABLESPACE "TEMP" TEMPFILE
  SIZE 213909504
  AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M
  EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1048576;
CREATE UNDO TABLESPACE "UNDOTBS2" DATAFILE
  SIZE 26214400
  AUTOEXTEND ON NEXT 26214400 MAXSIZE 32767M
  BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE;

   ALTER DATABASE DATAFILE
  '+DATA/HAWK/DATAFILE/undotbs2.265.962254263' RESIZE 235929600;
CREATE TABLESPACE "USERS" DATAFILE
  SIZE 5242880
  AUTOEXTEND ON NEXT 1310720 MAXSIZE 32767M,
  SIZE 4194304
  LOGGING ONLINE PERMANENT BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE DEFAULT
 NOCOMPRESS  SEGMENT SPACE MANAGEMENT AUTO;

   ALTER DATABASE DATAFILE
  '+DATA/HAWK/DATAFILE/users.269.962674885' RESIZE 5242880;

--- Remove ALTER and RESIZE from sql file.
--- Most likely the incorrect way to do this since TBS may be undersized.

12.2 Datapump Improvements actually does this the right way.

[oracle@racnode-dc1-2 log]$ sed -i.bak '/ALTER DATABASE DATAFILE\|RESIZE/ d' tablespaces_ddl.sql

[oracle@racnode-dc1-2 log]$ ls -l tablespace*
-rw-r--r-- 1 oracle dba 1214 Dec 14 02:03 tablespaces_ddl.sql
-rw-r--r-- 1 oracle dba 1488 Dec 14 01:45 tablespaces_ddl.sql.bak

[oracle@racnode-dc1-2 log]$ diff tablespaces_ddl.sql tablespaces_ddl.sql.bak
14a15,16
>    ALTER DATABASE DATAFILE
>   '+DATA/HAWK/DATAFILE/undotbs1.260.962253853' RESIZE 152043520;
24a27,28
>    ALTER DATABASE DATAFILE
>   '+DATA/HAWK/DATAFILE/undotbs2.265.962254263' RESIZE 235929600;
32a37,38
>    ALTER DATABASE DATAFILE
>   '+DATA/HAWK/DATAFILE/users.269.962674885' RESIZE 5242880;

[oracle@racnode-dc1-2 log]$ cat tablespaces_ddl.sql
-- CONNECT SYS
ALTER SESSION SET EVENTS '10150 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10904 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '25475 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10407 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '10851 TRACE NAME CONTEXT FOREVER, LEVEL 1';
ALTER SESSION SET EVENTS '22830 TRACE NAME CONTEXT FOREVER, LEVEL 192 ';
-- new object type path: DATABASE_EXPORT/TABLESPACE
CREATE UNDO TABLESPACE "UNDOTBS1" DATAFILE
  SIZE 26214400
  AUTOEXTEND ON NEXT 5242880 MAXSIZE 32767M
  BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE;

CREATE TEMPORARY TABLESPACE "TEMP" TEMPFILE
  SIZE 213909504
  AUTOEXTEND ON NEXT 655360 MAXSIZE 32767M
  EXTENT MANAGEMENT LOCAL UNIFORM SIZE 1048576;
CREATE UNDO TABLESPACE "UNDOTBS2" DATAFILE
  SIZE 26214400
  AUTOEXTEND ON NEXT 26214400 MAXSIZE 32767M
  BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE;

CREATE TABLESPACE "USERS" DATAFILE
  SIZE 5242880
  AUTOEXTEND ON NEXT 1310720 MAXSIZE 32767M,
  SIZE 4194304
  LOGGING ONLINE PERMANENT BLOCKSIZE 8192
  EXTENT MANAGEMENT LOCAL AUTOALLOCATE DEFAULT
 NOCOMPRESS  SEGMENT SPACE MANAGEMENT AUTO;

[oracle@racnode-dc1-2 log]$