reading vaules from a text file.


 
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# 1  
Old 01-09-2009
reading vaules from a text file.

say i have a text file called "input.txt"

1 5
2 10
3 15
4 20

and say I wanted to read the row 3 from column 2 how would i go about it.

I guess I would use "awk" but I'm not sure how.
# 2  
Old 01-09-2009
man awk is almost always a good start
Quote:
Each field in the input record may be referenced by its position, $1, $2, and so on.
NR The total number of input records seen so far.
So, given that and your input:
Code:
awk 'NR==3{print $2}' input.txt

# 3  
Old 01-09-2009
thanks, that's great.
 
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