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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

subtraction between lines

Terminal - subtraction between lines
seq 1 3 20 | sed -n '1{h;d};H;x;s/\n/\t/p' | awk '{printf("%d - %d = %d\n", $2, $1, $2-$1)}'
2011-11-10 10:38:11
User: kev
Functions: awk sed seq
subtraction between lines


There are 15 alternatives - vote for the best!

Terminal - Alternatives
seq 1 3 20 | awk '{ T[NR]=$1} END {for (i=1;i<=(NR-1);i++) print T[i+1],"-",T[i],"=" , T[i+1]-T[i]}'
2011-11-13 10:36:18
User: benoit_c_lbn
Functions: awk seq
Tags: sed

It's allways strange for me to see sed and awk in the same command line if you can avoid it

Know a better way?

If you can do better, submit your command here.

What others think

That's really neat! Just playing around with it you can make times tables rather easily with:

seq 1 1 50 | awk '{printf("%d * %d = %d\n", $1, 2, 2*$1)}'

Comment by unixmonkey27192 257 weeks and 6 days ago

Your point of view

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