How to remove duplicate files in Linux using rdfind

Duplicate files can be removed using the rdfind command in Linux. To do so open a terminal window and first install rdfind as below:$ sudo apt-get install rdfind <enter> Then, check for duplicate files on a medium:$ rdfind true . <enter> . is the current directory where I ran rdfind Make sure you have a … Continue reading How to remove duplicate files in Linux using rdfind →

How to use deja-dup for data backups on Linux

Deja-dup is a Gnome application. It can be used for data backups of the computer to a USB drive, another hard disk, folder or even to the cloud. Data backups are encrypted using the Gnu Privacy Guard (GPG) shared key as they are done. The first backup takes time, depending on the data to be … Continue reading How to use deja-dup for data backups on Linux →

Sort text file in Linux from a particular position

I have a text file, named all.txt, with the following content:f http://www.google.com/f http://www.abc.com/c http://www.google.com/c http://www.abc.com/ I want to sort it on the URL ignoring the first 2 characters i.e f or c . To do this, Linux provides a sort command. Using the keydef option, the file can be sorted. To do so, open a … Continue reading Sort text file in Linux from a particular position →

Tools to determine privacy safeguards for web sites and apps – Exodus, Blacklight and Chef Koch Blog

Whilst privacy is the buzz word today, the tug of war between how much is revealed and taken versus how much is protected and safeguarded continues unabated. Towards that end, some privacy tools do enable the decision as an individual on what can be the consequences of using certain applications and web sites. Exodus - … Continue reading Tools to determine privacy safeguards for web sites and apps – Exodus, Blacklight and Chef Koch Blog →

How to fix AVD emulator grainy, poor resolution display in Android Studio

The AVD emulator on Android Studio display shows all characters at 1:1 resolution grainy. It is difficult to read the text of the app under testing. To overcome this problem: From the menu of Android Studio select Help -> Edit Custom Properties and enter hidpi=false Create the AVD emulator device and disable device frame and … Continue reading How to fix AVD emulator grainy, poor resolution display in Android Studio →

How to install ttf-mscorefonts-installer on Linux Mint

Do not install the package ttf-mscorefonts-installer using like Software Center or Synaptic on Linux Mint 21. It does not work because the user licence has to be accepted. To install the package, open a terminal window and enter: $ sudo apt-get install ttf-mscorefonts-installer <enter>

Code Snippets Manager or Things List Manager on Linux for app developers or normal users

Working as a developer has it's house-keeping that needs to be done on a regular basis. Developers can save time using code snippets managers whose key feature is to store code snippets with code formatting, tips, tricks, information nuggets, all gained during the course of application development. The same code snippets for an ordinary user … Continue reading Code Snippets Manager or Things List Manager on Linux for app developers or normal users →

How to install Oracle SQL developer data modeler on Linux Mint 21 or Ubuntu Linux

One of the best tools for database design is the Oracle SQL Developer Data Modeler and it's free. As a developer who designs databases this tool is indispensable due to the features it has. The tool can be downloaded from https://www.oracle.com/database/sqldeveloper/technologies/sql-data-modeler/. Note that you need to have an account with Oracle. The only issue is … Continue reading How to install Oracle SQL developer data modeler on Linux Mint 21 or Ubuntu Linux →

How to fix error of Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead in Ubuntu Linux 22.04 LTS or Linux Mint 21

In Ubuntu 22.04 LTS or Linux Mint 21, there has been a change in the way keys to repos are stored. When installing software like Spotify from the internet via instructions there, the commands used cause an error when running apt-get update. The following error appears: Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d … Continue reading How to fix error of Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead in Ubuntu Linux 22.04 LTS or Linux Mint 21 →