| HOWTO: sum a column of data on the cmdline 3 hours ago by id Assume you have a text file of some delimited type, and you need to sum a column of numbers, here’s an easy way to do it. example.txt abc 123 bcd 234 cde 345 From the command line: cut -f 2 example.txt | awk '{sum += $1} END {print sum}' The explanation: cut -f 2 example.txt This command cuts the 2n ... iandouglas.com - iandouglas.com/geek |
| print “hello world” ; 4 hours ago by id Welcome to my geek HOWTO site. In a tagent of how I used to write my geek articles, my new articles will be more HOWTO based, and less rambling about geek topics that interest only me. That’s not to say that I won’t ever stray from the HOWTO setup that I want, and of course since my ‘headhunter’ ser ... iandouglas.com - iandouglas.com/geek |
| One Minute Mac Tip: Create an encrypted disk image to store confidential files 6 hours ago by maymay This entry was originally published at my site's personal web log. Additional information or comments may be available on the original posting. Nary a day goes by when I don’t use my computer for some extremely personal stuff. I would consider it a Very Bad Thing if some of this information (my bank ... may maym - maymaym.livejournal.com ·  1 reference |
| DIY Filing Cabinet Linux Server Cluster [Weekend Project] 9 hours ago by Gina Trapani Freelance animator Janne needed a cheap way to do a whole lot of CPU-intensive 3D rendering, so he built a Linux cluster into an Ikea filing cabinet to get the job done. The Helmer was a whole lot cheaper than what CPU cases would cost for the servers he built, and it saved a lot of space, too. Chec ... DiyUs.com - diyus.com |
| HowTo: Make a Polygon Lamp Shade 10 hours ago by admin Polypropylene pendant lights are very popular in contemporary modern day homes. Unfortunately, for anything designer, you’d have to fork out a handsome amount of money to procure it. Despite most local lighting stores constantly putting up banners that sale ‘ SALE! Discount up to 70%‘, pendant light ... How'sHouse - howshouse.com · 7 references |
