======AWK======
=====Print Column=====
<code>$ awk -F "," '{print $1}'</code>
=====Use Env Var in AWK====
Basic example. Notice that you do not use a $ sign when using the variable
<code>NUMBER=4
echo | awk -v my_var=$NUMBER '{print "My var is " my_var}'</code>
Produces the ouput
<code>My var is 4</code>
=====Search Where Column Has Value=====
To search a bunch of text where column 1 is made up of numbers and we only want to print the lines where the value of column 1 is greater than or equal to 100.
<code>cat file | awk '$1 >= 100'</code>
You could extend it using
<code>cat file | awk '$1 >= 100 && $1 <= 999'</code>