Category: Other Linux

How to query the GTK3 theme currently in use on Linux, enable dark mode and display missing icons in Gnucash

To view the current GTK3 theme in use on the XFCE desktop environment that is pre-installed in distributions like Linux Mint or Xubuntu, open a terminal window and enter the following comment: $ gtk-query-settings theme <enter> Upon enter, it displays the following: gtk-theme-name: "Mint-Y-Dark-Orange" gtk-icon-theme-name: "Mint-Y-Dark-Orange" ! gtk-fallback-icon-theme: NULL gtk-key-theme-name: NULL gtk-cursor-theme-name: "Bibata-Modern-Ice" gtk-cursor-theme-size: 24 … Continue reading How to query the GTK3 theme currently in use on Linux, enable dark mode and display missing icons in Gnucash →

How to install python3 on Linux

Install python3 $ sudo apt-get install python3-pip python3-venv python3 <enter> Make an isolated environment$ mkdir environment <enter>$ cd environment <enter>$ python3 -m venv my_env <enter> where my_env is the isolated environment$ ls my_env <enter> to display the created folders Activate the isolated environment$ source ~/environment/my_env/bin/activate <enter> This will be the resulting prompt(my_env) patrick@rm01:~/environments$ Create a … Continue reading How to install python3 on Linux →

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 →

How to convert PostScript script to a .ps file for viewing in PDF viewer or to PNG

Reading about Gerard Huet's paper on the geometry of the Shri Yantra available in PDF format at this link http://pauillac.inria.fr/~huet/SKT/sanskrit.html.orig, I was prompted to try out the Postscript code he had in and Appendix in the paper. After typing the code into a .txt file, the file did not render using Evince or a PDF … Continue reading How to convert PostScript script to a .ps file for viewing in PDF viewer or to PNG →

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 backup Android apps source code from Android Studio or command line

Developers use Android Studio to create applications for Android devices. However, if a source code management system like github is not used, then the source code or code of these apps under development has to be backed up. To do this, there are two ways, one from Android Studio and the other from the command … Continue reading How to backup Android apps source code from Android Studio or command line →

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 →