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How can i join three lines into one in unix?


 
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# 22  
Old 10-08-2009
Quote:
Originally Posted by Kibou
Code:
select <something><something>
update <something><something>
insert into <something><something>
select <something><something>
<something><something>
update <something><something>
select <something><something>
<something><something>
<something><something>
<something><something>
update <something><something>

output:
Code:
update <something><something>
insert into <something><something>
insert into <something><something>
update <something><something>

Code:
awk '/select/{f=0}/update/{f=1}f' file

# 23  
Old 10-08-2009
given your algorithm and a sample input file provided, I get:
Code:
update <something><something>
insert into <something><something>
update <something><something>
update <something><something>

not sure how you arrived at your output.....
# 24  
Old 10-08-2009
Quote:
Originally Posted by danmero
Code:
awk '/select/{f=0}/update/{f=1}f' file

Perfect, this does it perfect. I am amazed with the power of awk. Thanks for your help.
So fast answering.. thank you.

---------- Post updated at 02:00 PM ---------- Previous update was at 01:57 PM ----------

Quote:
Originally Posted by vgersh99
given your algorithm and a sample input file provided, I get:
Code:
update <something><something>
insert into <something><something>
update <something><something>
update <something><something>

not sure how you arrived at your output.....
Thanks so much, the statement provided by danmero works. I really appreciate your help.

Regards.

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