Episode 31: Unix Commands

Download

News

• Raspberry Pi “SuperComputer” Cluster
• http://www.zdnet.com/build-your-own-supercomputer-out-of-raspberry-pi-boards-7000015831/
• Why the World’s Best Photo Startup is Going Out of Business
• http://www.theverge.com/2013/11/5/5039216/everpix-life-and-death-inside-the-worlds-best-photo-startup
• 3d Printers at CES
• http://makezine.com/2014/01/16/the-state-of-3d-printing-and-scanning-after-ces-2014-the-push-for-mainstreaming-begins/
• The top 25 Oddball Interview Questions
• http://www.glassdoor.com/blog/top-25-oddball-interview-questions/

Interview Tips

• Read up about the company you’re interviewing with
• Core Products, Revenue
• Be Confident, don’t be intimidated
• Interviewer has studied the problems in advance
• Attempt every problem, explain your thoughts, leave no stone unturned
• Prepare a couple good questions for the interviewer
• Have example code/ open source projects
• Practice implementing common data structures and algorithms from scratch
• Binary Trees and Tree Traversal
• HashMaps
• Sorting (at least 1 O(n log n) algorithm)
• Graph Algorithms
• Recursion & Dynamic Programming
• TopCoder, Kaggle, Project Euler (and other competition sites)
• http://www.topcoder.com/tc?module=Static&d1=tutorials&d2=alg_index
• Cracking the Coding Interview
• Worst Interviewer / Interviewee moments

Book of the Show

• Jason: Mahout in Action http://amzn.to/1eizgRS
• Patrick: Bebop to the Boolean Boogie http://amzn.to/1cGRdaD

Tool of the Show

• Jason: Kaggle http://www.kaggle.com/
• Patrick: KiCad http://www.kicad-pcb.org/

Unix Commands

Shells

• Bourne
• C Shell (csh)
• Korn Shell (ksh)
• Thompson Shell (tsh)
• Bash

Common Commands

• cat
• sed & awk
• diff & patch
• tar
• gzip
• crontab
• bg, jobs, kill
• ps, history
• readlink
• sort & uniq
• tr, tr -s
• cut
• grep (and grep -r)
• xargs
• date

Rare But Useful Commands

• expand
• fmt
• column

Quirky Commands

• cal
• banner