It’s a neat and powerful command that all *nix users should know. >> grep -rn “keyword” * This does a search for the keyword. * = all files -r = recursive (for all child directories) -n = show line numbers
I had the pleasure if installing Windows 8.1 onto a machine because I was having driver compatibility issues with Ubuntu. It was like taking a step back in time. Took almost all day to install windows 8. Then install the security updates, then upgrade to 8.1. What a mission. However, it’s good to be back… Read More »
There are basically 2 ways to set up VPN on a Raspberry Pi. There is an easy way and a hard way. Use the PiVPN installer (https://www.sitepoint.com/setting-up-a-home-vpn-using-your-raspberry-pi/) Download and install OpenVPN manually (http://readwrite.com/2014/04/10/raspberry-pi-vpn-tutorial-server-secure-web-browsing/) The PiVPN installer is very neat and very cool and saves a lot of time. The disadvantage is that you are running… Read More »
I had always used Win32 Disk Imager to create my Raspberry Pi images because I was a windows person prior to my conversion to Mac. To be honest, Win32 Disk Imager was really simple v trying to understand command line such as: sudo dd bs=1m if=path_of_your_image.img of=/dev/rdiskn I finally took the leap and gave it… Read More »
This is a neat podcast that a friend of mine introduced me too. It is for a total newbie and talks about: 1. What kind of event to organize depending on the situation – Breakfast, Cocktail Hour/Happy Hour, Dinner 2. Whom to invite 3. How to get people to come when you’re still new to… Read More »
The secure copy command is: scp where_the_file_is where_the_file_should_be Or more correctly: scp source destination The trick with a raspberry pi, or any remote location in fact is to include the username@host/ip with a colon as the first part of the source address. eg scp pi@192.168.x.x:/home/pi/text.txt ~/
Ever needed to grab the public IP of the device you are on via terminal? This neat command will do the trick! curl ifconfig.me
As a developer, one of the worst problems to encounter is the white space problem. In recent memory I’ve encountered this 2 times. Once in 2013 when integrating with MYOB, a trailing white space at the end of a variable caused an http 400 error which was a complete mystery at the time. The second time… Read More »
I had the opportunity to present at the recent local Mulesoft user group meet up in Wellington and shared my experience with Mule ESB. In particular, a whacky project where I used Twitter to turn on an LED with a Raspberry Pi and Mule ESB. Check out the video below of the talk. The slides… Read More »
There is a neat tool to rename files very quickly. Install it with brew via >> brew rename I had to remove the dot from this file name: 2016-10-24 19.12.15.jpg because the system that I was using was poorly designed and expected a file extension after the first period. I ran >> rename -nvs ‘.’ ”… Read More »