different line and column ?

Shell Programming and Scripting
1

Hi,

I want to take 2 variable from different line and column. But I am new in bash because of this I couldn't do. If you help me I will be happy :o:

Example output:

I want to take only example2 and example6

2

This smells like a covert homework problem, can you explain what you're trying to achieve?

Regards

3

No it isn't my homework. I am trying to take free ram in centOS.

total used free shared buffers cached
Mem: 248 227 20 0 34 100
-/+ buffers/cache: 93 155
Swap: 2000 105 1895

I want to take 3rd and 7th column in 2nd line. I am taking but for earch line not 2nd :(...

free -m | awk '{print $3 - $7}' | awk '{print "Free Ram: " $1}'

4

try something on these lines, below prints 3rd coulmn of line where MEM is found & 4th column in the line where it finds -/+.

awk '/Mem/ {print $3} /\-\/\+/ {print $4}' f�lename

5

Is this what you're looking for?

awk 'NR==2{print "Free ram: ", $2, $7}'

Regards

6

Thank you Franklin52 and brainyoung.

awk 'NR==2{print "Free ram: ", $2, $7}'

with this I solved my problem.