title: Using AWK to filter out column with numerical ranges
body: <p>I'm relatively new to BASH and I'm trying to use awk to filter out column 1 data based on the 4th column of a text file. If the 4th column of data matches the range of x, then it'll output column 1 data. "x" is suppose to be a range of numbers 1-10 (1,2,3..10). </p>
  
  <pre><code>awk -F: '{ if($4=="x") print $1}' filename.txt
  
  filename.txt 
  sample1 0 0 4
  sample2 0 0 10
  sample3 0 0 15
  sample4 0 0 20
  </code></pre>
  
  <p>Actual use:</p>
  
  <pre><code>awk -F: '{ if($4=="1-10") print $1}' sample.txt
  output = sample1, sample2, sample3, sample4
  </code></pre>
  
  <p>It should be: <code>sample1 sample2</code> only.</p>
  
  <p>Is there is an error in the syntax that I'm not seeing or I could be possibly using this syntax completely wrong?</p>