What is the main difference between an absolute and a relative path on Unix based systems

Those who have made use of the cd command through a terminal application on their own operating system, have probably made use of a relative path, an absolute one or both of them. Based on my personal experience with the command line, the cd command is a Unix based one and it helps the user to navigate their filesystem through the terminal application. The cd command takes the path of the file as an argument.

For example, the following command helps the user to change their current working directory to the Desktop.

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Ten Unix commands you should periodically try on your terminal application

Those who are familiar with the terminal application part of Unix based systems, have probably done some work with the help of it. Being a terminal user for some time now, I automate a lot of stuff on my Mac OS X operating system by making use of such a wonderful computer utility.

Although the graphical user interfaces offered by the modern computer operating systems out there make the terminal application seem like a nightmare to the beginner computer user, based on my personal experience I am completely sure that by guiding one through the right path of becoming a command line user, terminal becomes their first choice when interacting with their own operating system of choice. Continue reading “Ten Unix commands you should periodically try on your terminal application”

How to add a watermark with Python and FFmpeg on your video

The FFmpeg multimedia framework offers many utilities which can be used to process video files. Having used such tools myself for some time now, I find the framework truly useful, especially when I want to do video conversion. Although FFmpeg is a great framework to use as a standalone; accessing its features through the Python computer programming language makes things more interesting.
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How to write a wrapper for ffmpeg with the help of Python, first part

The Python computer programming language is very handy when it comes to automating stuff, especially prototyping. Easy to read and write, the Python computer technology offers rapid development. It is a perfect tool for wrapping functionalities of existing software. As I have mentioned in many of the previous articles being shared in here, I am currently working on a project which wraps some of the functionalities present in the FFMpeg multimedia framework.
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A practical case of an error class in Python

Many beginners of the Python computer programming language have a difficulty in understanding custom error classes; especially when they want to make use of them in their projects.

I am writing this article with the main purpose of giving a practical example of an error class which I am making use of in a personal project.
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How to access the elements of a generator object in Python

A generator object in the Python computer programming language is totally different from a normal function, as it returns multiple values one by one through the yield statement.

As you may already know, a normal function in Python returns one value to the caller through the return statement. One can easily access the value returned by the normal function just by calling it. Continue reading “How to access the elements of a generator object in Python”