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David Kittell
David Kittell

Application & System: Development / Integration / Orchestration

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David Kittell

Application & System: Development / Integration / Orchestration

Category: UNIX Shell Scripts

Mac OSX – Update DNS Based On WiFi

Posted on June 8, 2016June 8, 2016 By David Kittell

I often have to bounce between WiFi at the office and the public WiFi so I finally put this script together. You will need to get the BSSID of your WiFi connection to replicate this but here is the code, of course you need to run this with sudo privileges…

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UNIX Terminal – Secure Copy (SCP)

Posted on May 31, 2016May 31, 2016 By David Kittell

Secure Copy (SCP) is a useful UNIX command that allows you to securely copy files and directories between your local machine and a remote computer. In the examples below “-P 22” is not actually needed if the SSH port is 22. Many of the servers I connect to have a…

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Mac OSX Terminal – Find & Scan Wireless Networks

Posted on May 27, 2016 By David Kittell

First create symlink Once the Symlink is in place you can scan for Wi-Fi Referenced From: http://osxdaily.com/2012/02/28/find-scan-wireless-networks-from-the-command-line-in-mac-os-x/

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Mac OSX Terminal – Change/Set DNS

Posted on May 27, 2016June 4, 2020 By David Kittell

This may need to change depending on your network interface Manual Process Running the above will display something like this More Automatic Process Prerequisite 1: Optional but useful, this script originally developed by VMWare has been modified to get some basic identification for linux based computers. More details at Bash…

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Mac OSX Terminal – Create Desktop Shortcuts/Symlink

Posted on May 26, 2016May 26, 2016 By David Kittell

Coming from Windows I sometimes still have the desire or need for a desktop shortcut/symlink. There are two easy options for this Right click the application, select “Make Alias” and drag that alias to the desktop and potentially rename it at one point or the other. Open Terminal (Applications –…

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UNIX Terminal – Grep Directory Recursively

Posted on May 22, 2016 By David Kittell

Sometimes you really need to find a file that has certain text in it, these commands will help provided you have an idea of the directory or the string

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MacPorts / HomeBrew – Rip CD tracks from terminal

Posted on May 22, 2016November 5, 2017 By David Kittell

I’m mainly doing this project for my church where the CD will typically only have one track and the MP3 bitrate is acceptable at 64 kbit/s Yes there are faster options that also are free but this is the best option I’ve found to make it an easy process someone…

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NetStat – Get Network Statistics

Posted on May 16, 2016June 16, 2020 By David Kittell
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Linux/Unix/Mac OSX – Find & Remove Empty Directories

Posted on May 4, 2016January 29, 2024 By David Kittell

Occasionally you get empty directories and need to clear them out, these scripts below will help with that, just be careful what directory you choose. The scripts below are set to ~/ (current user home directory) but can easily be changed to any directory on your system. Similarly if you…

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UNIX – Extract RedHat/CentOS/Fedora RPM File

Posted on April 21, 2016April 21, 2016 By David Kittell

I love to find RPM files that someone has compiled so that I don’t have to do the manual work but when I find one at a questionable location or one I’m simply not familiar with it’s nice to know what is in it. Recently I did a search on…

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