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How to select text within the second ()?

 
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# 1  
Old 10-11-2010
How to select text within the second ()?
Hello,

Can someone advise me how to select the text within the second bracket of a string in shell script?

For example, the input file:
some message (string A) some message (string B) some message (string C) some message (string D) some message (string E)

The number of bracket is random and how to get Sting B only?

Thank you very much!
Hanul
# 2  
Old 10-11-2010
Hi.

Depending on your version of awk:
Code:
$ awk -F"[()]" '{print $4}' file1
string B

# 3  
Old 10-11-2010
couple of ways:

Code:
#  str="some message (string A) some message (string B) some message (string C) some message (string D) some message (string E)"

#  echo $str|nawk -F"[()]" '{print $3}'
string B

#  echo $str | sed 's/[^(]*([^(]*(\([^)]*\)).*/\1/'
string B

HTH
This User Gave Thanks to Tytalus For This Post:
hanul
# 4  
Old 10-11-2010
Thanks very much!!!
# 5  
Old 10-11-2010
Code:
ruby -F'[)(]' -ane 'print $F[3]' file

 
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