Help for search string


 
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# 1  
Old 02-24-2012
Help for search string

Hi all,

I have a file. I want to search particular string in that file and also print next 10 line. I have a code.
Code:
 
awk '/search word/{c=10}c&&c--' file name

But I want to pass string as a variable,But my code not working
Code:
awk '/$var/{c=10}c&&c--' file name

Please help me
Thanks in advance
# 2  
Old 02-24-2012
awk

Hi,

Try this one,

Code:
awk -v n="$var" 'BEGIN{c=0;}/n/{match=1;}{if(macth == 1 && c < 10 ){c++;print;}if( c == 10){match=0;c=0;}}' Input_File

Cheers,
RangaSmilie
# 3  
Old 02-24-2012
Quote:
Originally Posted by rangarasan
Hi,

Try this one,

Code:
awk -v n="$var" 'BEGIN{c=0;}/n/{match=1;}{if(macth == 1 && c < 10 ){c++;print;}if( c == 10){match=0;c=0;}}' Input_File

Cheers,
RangaSmilie
This is not working
# 4  
Old 02-24-2012
thanks Ranga..
another question came up as I tried to answer this thread:

export cmd="awk '/failed/{ print $0 }' /var/log/dmesg"
exec $cmd

this doesn't work - I got an error in bash shell - how to mask these chars?
# 5  
Old 02-24-2012
exec "$cmd"
This User Gave Thanks to Scrutinizer For This Post:
# 6  
Old 02-24-2012
Quote:
Originally Posted by Scrutinizer
exec "$cmd"
I can't get the answer. I want to pass search string as a variable
# 7  
Old 02-24-2012
Quote:
Originally Posted by rangarasan
Hi,

Try this one,

Code:
awk -v n="$var" 'BEGIN{c=0;}/n/{match=1;}{if(match == 1 && c < 10 ){c++;print;}if( c == 10){match=0;c=0;}}' Input_File

Cheers,
RangaSmilie
Change macth to match. Then try again.
@rangarasan
Was that a typo?
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