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how to get surrounding lines of my grep search?

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# 1  
Old 09-05-2009
how to get surrounding lines of my grep search?


if I grep a file, sometimes I want to see as an eg 2 lines above and below my grep results.

how can this be done

# 2  
Old 09-05-2009
grep -B2 -A2

-B before
-A after
# 3  
Old 09-06-2009
which kind of grep support B and A option?
# 4  
Old 09-06-2009
let's say
grep -C2
# or
grep -2

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