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Search a string inside a pattern matched block of a file

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# 1  
Old 04-21-2017
Search a string inside a pattern matched block of a file
How to grep for searching a string within a begin and end pattern of a file.

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# 2  
Old 04-21-2017
Code:
awk '/STARTREGEX/ { P=1 } ; /ENDREGEX/ { P=0 } ; P && /LINEREGEX/' datafile

If that doesn't work we will need a LOT more details.
# 3  
Old 04-24-2017
Thank you for the help.

However, I wanted to fetch the first line after the 'STARTREGEX' as well, as each pattern block name(1st line after the pattern) containing the matched string is also required.
I missed to mention the above prior !

E.g.:

Code:
START 
Block1
..
..
string
..
END 
START 
Block2
..
..
END 
START 
Block3
..
string
..
END

So, here I wanted the output like:
Code:
Block1 string
Block3 string

Awaiting your suggestions..!
Moderator's Comments:
Mod Comment Please use CODE tags (as required by forum rules) when displaying sample input, sample output, and code segments.
Last edited by Don Cragun; 04-24-2017 at 03:30 AM.. Reason: Add CODE tags.
# 4  
Old 04-24-2017
Quote:
Originally Posted by Baishali
Thank you for the help.

However, I wanted to fetch the first line after the 'STARTREGEX' as well, as each pattern block name(1st line after the pattern) containing the matched string is also required.
I missed to mention the above prior !

E.g.:

Code:
START 
Block1
..
..
string
..
END 
START 
Block2
..
..
END 
START 
Block3
..
string
..
END

So, here I wanted the output like:
Code:
Block1 string
Block3 string

Awaiting your suggestions..!
Moderator's Comments:
Mod Comment Please use CODE tags (as required by forum rules) when displaying sample input, sample output, and code segments.
Given the code that Corona688 suggested, can you show us how you might be able to modify that suggestion to get the output you want.
# 5  
Old 04-24-2017
I tried the below code :

Code:
awk '/STARTREGEX/{P=1;getline;print;} ; /ENDREGEX/ { P=0 } ; P && /LINEREGEX/{ print }' datafile

This however prints all the block names along with the lines where the string is matched.

Code:
Block1 string
Block2
Block3 string

# 6  
Old 04-24-2017
How about
Code:
awk '/^Block/ {BL = $0} /START/,/END/ {if (/string/) print BL, $0}' file
Block1 string
Block3 string

# 7  
Old 04-24-2017
Quote:
Originally Posted by RudiC
How about
Code:
awk '/^Block/ {BL = $0} /START/,/END/ {if (/string/) print BL, $0}' file
Block1 string
Block3 string

---------- Post updated at 11:58 AM ---------- Previous update was at 11:36 AM ----------

Thank you RudiC for the alternate solution,
However the word Block was to illustrate an example, the file actually has different block names and only identifier is it is the next line after the STARTREGEX matched.

Code:
START
Block 1
..
string
..
END
START
Group 2
..
END
START
BLK 3
..
string
..
END

Result needed:
Block 1 string
BLK 3 string
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