Using awk to count the number of occurrences of a word in a column

Question

03/03/2014 12:31:21 BLOCK 10.1.34.1 11:22:33:44:55:66

03/03/2014 12:31:22 ALLOW 10.1.34.2 AA:BB:CC:DD:EE:FF

03/03/2014 12:31:25 BLOCK 10.1.34.1 55:66:77:88:99:AA
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Answer 1

Here is a non-code solution. You can string together the steps with pipes ( "|" ).

awk '{print $3}' file | sort | uniq -c

• awk '{print $3}'

  print the 3rd column , the default record separator in awk is white space.

• sort

  sort the results

• uniq -c

  count the number repeated occurrences