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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: Ubuntu

Posts in this category are specific to Ubuntu and may or may not work on Zorin OS, Raspbian, and Debian or other UNIX based systems.

Raspberry Pi – Remove Default Apps

Posted on July 19, 2017March 26, 2019 By David Kittell

If you setup your Raspberry Pi using the NOOBs installer you likely have various apps that you don’t want to keep. This script below will remove many of the preinstalled applications. wolfram-engine bluej geany greenfoot nodered nuscratch scratch sonic-pi libreoffice claws-mail claws-mail-i18n minecraft-pi pygame If you are running as a…

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Strong Password

Posted on May 15, 2017 By David Kittell

Need help with what a strong password is? Strong password recommendations are as follows: Must contain 14 or more characters Must contain upper and lower case letters Must contain a number or special character (e.g. !@#$%^) Must NOT be the same as your previous 12 passwords Must NOT be similar…

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Uptime Formated

Posted on May 9, 2017 By David Kittell

If you simply want uptime formatted this small script will help. Uptime by itself will display similar to: 20:25:48 up 3 days, 8:14, 1 user, load average: 2.07, 2.17, 2.35 Formatted using the code above will display similar to: 3 days, 8 hours, 15 minutes.

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Bash – Trim/Remove White Space

Posted on May 4, 2017August 25, 2019 By David Kittell
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UNIX – Pi-Hole Project – Statistics

Posted on April 21, 2017June 10, 2019 By David Kittell

If you are using Pi-Hole you may find this script useful Currently this is designed to run on the server that is running Pi-Hole but as I have more than one I want to monitor I will soon have an update for additional. First make sure you update your /var/www/html/admin/scripts/pi-hole/php/data.php…

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NMAP – Find Machines On Your Network

Posted on March 23, 2017May 22, 2019 By David Kittell

NMAP (a form of ARP list) is a tool for scanning your network for machines that are up or down along with pulling some helpful information from the machines that are up. Similar to Remotely Find Raspberry Pi IP but this is a bit more in-depth First install nmap if…

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DigiCert – OpenSSL Certificate Conversion

Posted on March 9, 2017 By David Kittell

I work with digicert® to get certificates. The way we get certificates sometimes requires me to convert the certificates, below is the process I use to get the formats for what I may need. This script assumes you have a directory with only the .csr file and the .zip file…

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UNIX – Display Network Information

Posted on March 6, 2017March 6, 2017 By David Kittell

The following code will give you network specific information about your server/computer.

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UNIX – List Files With Permissions In CHMOD Numbers

Posted on January 24, 2017April 13, 2020 By David Kittell

If you’re on UNIX you know ls will list files in a directory but typically you’ll get something like You can simily stat the file(s) with the below What if we work with stat and make it easier?

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UNIX – SED Remove Comment Lines

Posted on January 23, 2017 By David Kittell

This script will remove all lines that start with # along with all comments. Whatever file you choose I suggest you view first then execute

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