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To set the Python environment variable PYTHONPATH on a Mac, you can follow these steps − Open the Terminal app on your Mac. Navigate to your home directory by typing cd ~ and pressing Enter. Open the .bash_profile file in a text editor by typing open -e .bash_profile and pressing Enter. Create a new file called .bash profile by typing touch .bash_profile and pressing Enter. Add a line to set the PYTHONPATH environment variable in the file. For example − $export PYTHONPATH=/path/to/my/python/ This sets the PYTHONPATH environment variable to the path /path/to/my/python/modules. You should replace this with the path to the directory where your Python modules are ... Read More
If you're a Linux enthusiast looking for some fun and challenging games to play, look no further than the world of terminal-based games. While many gamers may scoff at the idea of playing games in a terminal, the truth is that there are a wide variety of amazing games available that can provide hours of entertainment. In this article, we'll take a look at some of the best terminal-based games for Linux enthusiasts, covering everything from classic arcade-style games to text-based adventures. So sit back, grab your favorite beverage, and get ready to explore the world of terminal gaming. Nethack ... Read More
VsFTP (Very Secure File Transfer Protocol) is a popular FTP server software used for transferring files over the internet. If you are applying for a job that requires knowledge of VsFTP, then it's essential to be familiar with the advanced concepts and technical questions that might arise during an interview. In this article, we will discuss some of the advanced VsFTP interview questions and their possible answers. What is VsFTP and Why is it Used? VsFTP is a secure FTP server software that allows users to transfer files over the internet. It provides a secure and efficient way to ... Read More
To set the PYTHONPATH environment variable on Linux, follow these steps − Open a terminal window on your Linux system. Determine the path to your Python module or package. For example, suppose you have a Python module named mymodule located in the /home/user/myproject folder. Set the PYTHONPATH environment variable to the path of your module or package using the following command − $export PYTHONPATH=/home/user/myproject:$ This command sets the PYTHONPATH environment variable to /home/user/myproject and also includes the previous value of PYTHONPATH in case it was already set. Note that the path should be separated by a colon (:) on Linux. Verify that the PYTHONPATH environment variable has been set correctly using the following command − ... Read More
Any character or group of characters that depicts horizontal or vertical space is known as whitespace. A whitespace character usually takes up space on a page even though it does not correspond to any visible mark when it is rendered. Pressing the spacebar will allow you to enter a whitespace character. On many keyboards, the Tab key can also be used to enter horizontal whitespace, although the length of the space may vary. Any spaces or tabs that follow the final non-whitespace character on the line until the newline are considered trailing whitespace. Whitespace in Python Whitespace is a type ... Read More
If you're a Linux user, you probably deal with file archives frequently. Whether you're sending files to someone, backing up data, or just organizing your files, compressing them into a single file archive can save a lot of space and make things easier to manage. One tool you can use for this purpose is 7zip. In this article, we'll cover 7zip command examples in Linux that you can use to compress and extract files in various ways. What is 7zip? 7zip is a free and open-source file archiver, similar to WinZip or WinRAR on Windows. It was developed by Igor ... Read More
If you are a Linux user, you may have heard of term "memory usage". Memory usage refers to amount of memory being used by your computer at any given time. It is an important metric to keep track of, as excessive memory usage can cause your system to slow down or even crash. Fortunately, Linux provides a built-in tool called "free" that allows you to check your system's memory usage. In this article, we will go over how to use "free" command to check memory usage in Linux. What is "free" Command? The "free" command is a built-in tool in ... Read More
Are you a Linux user who frequently works with video and audio files? If so, you'll want to learn about versatile avconv tool. Avconv is a command-line utility that can record, convert, and extract videos and audios from Linux terminals. In this article, we'll explore 10 different avconv commands that you can use to accomplish a variety of tasks. Record a Video The first avconv command we'll look at is how to record a video. This is useful when you need to capture a video of your screen or webcam. Here's command − avconv -f x11grab -s 1280x720 -i :0.0+0, ... Read More
The file systems ZFS (Zettabyte File System) and UFS (Unix File System) are both used in Unix-based operating systems. While both have been designed to manage and store data, they have numerous fundamental differences. ZFS is a modern file system that prioritizes data integrity and provides better levels of data protection and security through features such as checksumming, snapshots, and RAID-Z. UFS is an older file system developed in the early days of Unix that lacks some of ZFS's advanced features and scalability. Read this article to find out more about ZFS and UFS and how they are different from ... Read More
The World Geodetic System 1984 (WGS84) and the North American Datum 1983 (NAD83) are two geodetic coordinate reference systems used for position on the earth's surface. It is important to use the correct reference frame for a given application, as using the wrong one can result in significant positioning errors. WGS84 is the reference frame used by GPS devices, whereas NAD83 is used by mapping and surveying applications in North America. Read this article to find out more about WGS84 and NAD83 and how they are different from each other. What is WGS84? WGS 84 determines the Earth's orientation in ... Read More