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07-21-2008
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grep problem
SQL*Plus: Release 9.2.0.8.0 - Production on Mon Jul 21 07:53:35 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to: Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production With the Partitioning option JServer Release 9.2.0.8.0 - Production SQL> SQL> USER is "CCOD" SQL> cREATE TABLE HELLOEVERY (DEF VARCHAR2(40)) * ERROR at line 1: ORA-00955: name is already used by an existing object SQL> Disconnected from Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production With the Partitioning option JServer Release 9.2.0.8.0 - Production SQL*Plus: Release 9.2.0.8.0 - Production on Mon Jul 21 07:53:35 2008 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. Connected to: Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production With the Partitioning option JServer Release 9.2.0.8.0 - Production SQL> SQL> USER is "CCOD" SQL> cREATE TABLE greatwork(abcVARCHAR2(40)) * ERROR at line 1: ORA-00955: name is already used by an existing object SQL> Disconnected from Oracle9i Enterprise Edition Release 9.2.0.8.0 - Production With the Partitioning option JServer Release 9.2.0.8.0 - Production i just want to have SQL> cREATE TABLE HELLOEVERY (DEF VARCHAR2(40)) * ERROR at line 1: ORA-00955: name is already used by an existing object SQL> cREATE TABLE greatwork(abcVARCHAR2(40)) * ERROR at line 1: ORA-00955: name is already used by an existing object there could be repeated pattern as well. is there any way to grep only 3 or 4 lines after grepping a pattern please help thanks |
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07-21-2008
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Not grep, but an example with sed:
Code:
root@isau02:/data/tmp/testfeld> cat infile
ID .... VALUE
A001 .... 100
B002 .... 200
A004 .... 300
B006 .... 100
A997 .... 200
B776 .... 400
root@isau02:/data/tmp/testfeld> sed -n '/B002/ {p;n;p;n;p}' infile
B002 .... 200
A004 .... 300
B006 .... 100
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07-21-2008
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You can sometimes 'fool' grep by playing with the line layout
It is unclear what you are trying to look for. However, sometimes a file can be re-formatted to combine multiple related lines into one - so grep can work - and then the file broken back into pieces.
This is done with a "tr" command. If you provide more on what you are trying to learn from this file, someone may be able to assist in extracting the information. |
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07-21-2008
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With grep you can simply print 2 lines before and 1 line after the pattern as follow:
Code:
grep -B 2 -A 1 '^ERROR at line' file |
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