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Old 06-28-2014, 02:05 AM   #1
sryzdn
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shell scripting - selecting a range of numbers


Hi,

I have columns like this:

Code:
      1.205405     -0.948000
      1.234942     -1.251900
      1.264480     -1.550400
      1.294017     -1.842200
      1.323555     -2.126100
      1.353092     -2.400700
      1.382630     -2.664200
      1.412167     -2.913200
      1.441705     -3.140000
      1.471242     -3.322100
      1.500780     -3.400800
      1.532708     -3.309500
      1.564636     -3.099700
      1.596564     -2.840000
I want to select the colums in a way that: first column the numbers 1.4<x<1.5
and the second column the numbers are "3.0<y<3.5"

The result should be sth like this:

Code:
      1.441705     -3.140000
      1.471242     -3.322100
I don't know how to specify the range of numbers in "awk". I'd be thankful if you help me with that.
 
Old 06-28-2014, 02:40 AM   #2
sycamorex
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Hi,

You can compare values eg. $1 < 1.5 and assign multiple conditions with && (AND) so you'll have 4 conditions in total joined with &&.
 
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Old 06-28-2014, 02:47 AM   #3
syg00
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And you'd better be real careful with those tests for negative numbers ...
 
  


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