display (ehco) 5 lines before and after find keyword

wangzosen · #1 (**permalink**) 08-17-2008

I like to display 5 lines before and after find some keywork (i.e. error).

Thanks in advance

redoubtable · #2 (**permalink**) 08-17-2008

grep -B 5 -A 5 keyword file ? not sure I understand your question.

wangzosen · #3 (**permalink**) 08-17-2008

Thanks for response. It is exactly what I want. Is it possible to have highlight or color code the keyword on output?

redoubtable · #4 (**permalink**) 08-17-2008

try --color=auto

grep -B 5 -A 5 --color=auto keyword file

wangzosen · #5 (**permalink**) 08-17-2008

Cool. You are the men and thank you for help.

summer_cherry · #6 (**permalink**) 08-17-2008

hi, below one may put some light on your issue.

Code:

line=`sed -n "/$1/=" file`
echo $line
nawk -v l="$line" '{if(NR>=(l-1) && NR<=(l+1))
print
}' file

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