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Shell script awk/grep

Posted on 2010-09-21
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Last Modified: 2012-05-10
2010-09-20 07:20:52,545 INFO front-end : entering toMessage [[TransferObject: message = <
type : NEW_ORDER
2010-09-20 07:20:52,545 INFO front-end : entering toMessage [[TransferObject: message = <
type : FILL
2010-09-20 07:20:52,545 INFO front-end : entering toMessage [[TransferObject: message = <
type : AMEND

There are several types of Orders, but I want to grep only those whose first line has
 INFO front-end : entering toMessage [[TransferObject: message = <
and second line
has type : NEW_ORDER in it.

How can I do that? Please suggest
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Question by:srikanthrad
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PatTheDBA earned 500 total points
ID: 33727815
try this:
grep -A 1 "INFO front-end" <file to grepin> |grep "NEW_ORDER" -B 1

the -A gives you one line of context after the first line and the second grep (with -B) gives you one line of context before the grep.  Together you get exactly what you want
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