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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

grep on IP range from maillog

Terminal - grep on IP range from maillog
egrep '183\.([0-9]|(1[0-6]|2[0-3]))' -J /var/log/maillog*
2010-10-17 21:44:57
User: wazigster
Functions: egrep
grep on IP range from maillog

Useful for grepping an IP range from the maillog. When for instance dealing with a spam-run from a specific IP range, or when errors occur from or to a specific IP-range.

In the example above the IP range ( -

To grep the IP range ( - from the maillog:

egrep '124\.217\.2(2[4-9]|[34][0-9]|5[0-5])' -J /var/log/maillog*

NOTE: the location of the maillog may vary based upon operating system and distribution.


There is 1 alternative - vote for the best!

Terminal - Alternatives

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What others think

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Comment by stephanieg915 1 day ago

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