If you’re using i3 window manager and you want the Picture in Picture (PiP) window of Firefox and Chromium to be seen in all workspaces, just add this to your i3 config file : for_window [title="Picture-in-Picture"] sticky enable This will work for both Firefox and Chromium/Chrome PiP. If it doesn’t work, open a video in Picture in Picture mode and run the command wmctrl -l in terminal which will produce a similar output :... [READ MORE]

If you want to just get plainly the architecture of system like “arm” or “x86” in your apps, then this post is just for you. So with this function that I’m gonna present, you will get 3 values, “arm”, “mips” or “x86” whether or not the system is 32 bit or 64 bit. Here is the function : public static String getArch() { String arch = System.getProperty("os.arch").substring(0, 3).toLowerCase(); if (arch.equals("aar") || arch.... [READ MORE]

Take PHPUnit as an example. You can install it using Composer doing this : composer require phpunit/phpunit This will install a phpunit shortcut in vendor/bin directory. This obviously means you can run it. But, you would have to point to the exact location of the phpunit file to run : /home/username/mysite/vendor/bin/phpunit phpunit.xml But, that’s long and uncomfortable. And you would have to install PHPUnit separately for each projects. I’m gonna tell you how to install binaries globally as well as running it simply.... [READ MORE]

If you are reading this post, you should have seen the new UI of my blog. It’s a custom made theme created in a week during the exams. It’s similar to the old theme because, I liked it colorful and dark at the same time. I’m a Batman fan and black is good for the eyes. As a programmer, you don’t want to hurt your eyes. The theme is named “Subin’s Blog V2”.... [READ MORE]

Say you were displaying the size of a file in PHP. You obviously get the file size in Bytes by using filesize(). You won’t have any idea what the file size is if you read it in Bytes. Bytes is useful for file transmission in a network, but not for human usage. So, it’s better to convert it to human readable form. The circled areas show the converted size from Bytes.... [READ MORE]

Time Zones are important if you’re creating a social app which will include chat, social network and others which is interacted with the society. There are many time zones and you have to choose one to set in your server. I would totally recommend using UTC instead of your time zone in server. Web Server and Database server are different and they each have their own configuration. This includes the time zone too.... [READ MORE]

If you are creating a web app and there is conversation to the user without audio and just text, animations and effect will make the app better. In this short post, I’m introducing a simple text effect without any trouble at all. All it does is animate the text’s font size. But, the effect is like the text is popping up. Demo Here’s the code. It’s wrapped in a function and you can easily customize it :... [READ MORE]

Bash is like the very complicated language, even a space can make a syntax error. But, when you get into it often, you will get a hang of it and it will be easy. This post is a solution to one of the most common problems that happen to a newbie in Bash and it’s about a single whitespace. Here is a sample Bash file : a = 50 echo $a and when you execute it, the error will be as follows :... [READ MORE]

In Bash, we can add contents to file easily using the > character. Like this : echo "myContents" > ~/myfile.txt What if you want to append contents to the file without overwriting ? The easiest way to do this is change the “>” to “»”. Just by making this small change, appending will be done : echo "myContents" >> ~/myfile.txt Even if the file doesn’t exist, Bash will create one with the contents given to append.... [READ MORE]

All programming languages have the if & else conditions and they’re different in syntax according to each programming languages. In Bash, it’s really different and even a small space can cause syntax errors. So, you have to be careful while writing Bash code. In this post, I’ll give you many examples on how to use if and else conditions in Bash. if, else a="AC" if [ $a = "AC" ]; then echo "... [READ MORE]