What I learned this week Software Iceburg S3 Conditional Writes S3 is a database Business/Finance Interesting Links Math/Stats Travel Other Enjoyed spending time with family on Thanksgiving. Tried my best to do focus as much as possible with them and be off the phone. I worked a few days during the week but was very efficient with my time and made sure I stopped working and stayed not working through evenings and early mornings.

What I learned this week Software Add line numbers to head: head -n 5 example.csv | nl R cheatsheets Hamming codes When using psql from the command line don’t forget to end statements with a ‘;’. Business/Finance Acquired Ikea episode “It is not all that difficult to reach set targets if you do not have to count the cost. Any designer can design a desk that will cost 5000 krona. But only the most skilled can design a good, functional desk that will cost 100 krona.

What I learned this week Postgres knowledge dump Software Business/Finance $26BB of BTC $71BB market cap… Interesting Links Math/Stats Travel Other Cool fossils building a picnic table I really enjoy Beau’s videos.

What I learned this week Software Nice overview of jq, was using the aws emr cli to describe clusters so I could SSH into them aws emr describe-cluster –cluster-id and decided to use jq instead of grep -i dns I guess you can use spark in Athena echo {1..10} returns 1-10 < lines awk ‘NR%2 == 0’ filtering raw lines out of text file with awk is pretty handy < lines sample -r 10% quick “random” sample

What I learned this week Software arp -a The arp utility displays and modifies the Internet-to-Ethernet address translation tables used by the address resolution protocol. -a displays or deletes all of the current ARP entries. I passed the AWS Certified Cloud Practiioner Exam this week. I studied for a few hours to make sure I was familiar with some of the more niche offerings and all the marketing jargon that will appear on the test.