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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Parse logs for IP addresses and how many hits from each IP

Terminal - Parse logs for IP addresses and how many hits from each IP
cat "log" | grep "text to grep" | awk '{print $1}' | sort -n | uniq -c | sort -rn | head -n 100
2014-07-08 15:07:24
Functions: awk cat grep head sort uniq
Parse logs for IP addresses and how many hits from each IP


There are 2 alternatives - vote for the best!

Terminal - Alternatives
awk '/text to grep/{print $1}' "log" | sort -n | uniq -c | sort -rn | head -n 100
2014-07-09 08:48:06
User: kln0thing
Functions: awk head sort uniq

Original command: cat "log" | grep "text to grep" | awk '{print $1}' | sort -n | uniq -c | sort -rn | head -n 100

This is a waste of multiple cats and greps, esp when awk is being used

Know a better way?

If you can do better, submit your command here.

What others think

The car and grep are unnecessary when awk is being used.

Comment by kln0thing 120 weeks ago

Useless use of cat. Use better:

awk '/text to grep/{print $1}' | sort -n ...
Comment by sesom42 120 weeks ago

U'd better google "UUOC"

Comment by congee 117 weeks and 2 days ago

Your point of view

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