Counting with uniq

Shell experts make the best of simple combinations of standard utilities. Learn one of the most common examples of using two common commands together.


Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.

sort|uniq can be replaced by awk

wgshi's picture

How about we just do this

grep Jan/2004 access.log | grep foo.php |
awk '{a[$1]++}END{for(i in a)print i, a[i]}'

Re: sort|uniq can be replaced by awk

Kris's picture

He's right. It's trickier to remember, but way faster.

Free Dummies Books
Continuous Engineering


  • What continuous engineering is
  • How to continuously improve complex product designs
  • How to anticipate and respond to markets and clients
  • How to get the most out of your engineering resources

Get your free book now

Sponsored by IBM

Free Dummies Books
Service Virtualization

Learn to:

  • Define service virtualization
  • Select the most beneficial services to virtualize
  • Improve your traditional approach to testing
  • Deliver higher-quality software faster

Get your free book now

Sponsored by IBM