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Introduction Monitoring the performance of a Linux system is essential to ensuring that it is operating optimally. One of the key factors in determining the performance of a system is CPU utilization. CPU utilization refers to the percentage of time that the processor spends executing instructions from various processes and applications on the system. In Linux, there are numerous tools available for monitoring CPU utilization, but using command line tools provides a quick and efficient way to check this metric. Basic Command Line Tools for Checking CPU Utilization When it comes to monitoring CPU utilization with the command line in ... Read More
Introduction Debian Linux is an open-source operating system that is widely used in both personal and professional settings. It was first released in 1993 and has since then gained a reputation for being stable, secure, and reliable. Debian Linux comes with a wide range of software packages that can be easily installed and used by users. Due to its stability, Debian Linux is the preferred choice of many system administrators who need to run servers or other mission-critical applications. Checking Debian Linux Version using Command Line Interface (CLI) The Power of the CLI For those who are unfamiliar with it, ... Read More
Grayscaling an image includes converting a color image into a grayscale image. By using OpenCV library in various methods we can convert the color image with (multiple color channels) into a grayscale image (with a single channel). Some of the common methods for greyscaling an image using OpenCV are as follows. cv2.cvtColor(): This function is used to convert an image from one space color to another. Pixel ... Read More
In Python, by using different methods we can find the longest substring without repeating characters, such as by using the Brute force approach which involves checking all the Substrings, and also by using the advanced Sliding window Two Pointer approach, which uses a Hashmap to store the indexes. Some Common Methods Some of the common approaches in Python to find the longest Substring Without Repeating Characters are as follows. Brute Force: Checks all possible substrings and verifies if they have all unique characters in the string. Sliding Window with Set: This approach tracks characters in the current substring ... Read More
In Python formatting a floating point number to a fixed width can be done by using methods like Python's f-strings and the flexible format() method. Float formatting methods The two built-in float formatting methods are as follows f-strings: Convenient way to set decimal places, spacing and separators. str.format(): This method allows to formatting types inside the placeholders to control how the values are displayed. ... Read More
In Python __init_subclass__ method is a special method that allows us to initialize or customization of class creation particularly for subclasses. Key Characteristics of __init_subclass__ Some of the Key aspects of '__init_subclass__' method are as follows Automatic Invocation: The __init_subclass__ method is automatically called during the creation of a subclass and no need to manually invoke this method. Customizable via Parameters: To pass additional information or configuration options ... Read More
Amazon Web Services (AWS) offers various services like EC2, S3, AWS Lambda, and Amazon SageMaker. Companies use these Amazon services to store their databases and deploy their models. In this article, we will discuss Simple Storage Service (S3) and explain how to upload and download a file from Amazon S3. AWS S3 Simple Storage Service (S3) is used to store various files on the cloud. It is secure, simple, and cost-effective. In S3, there are buckets to store files such as images, folders, videos, and audio files. We can store, download, and upload files in different ways on S3. ... Read More
In Python the os module provides two methods for creating a directory they are os.mkdir() and os.makedirs(), we can create a Single directory by using os.mkdir() method and by using the os.makedirs() method we can create Subdirectories. To use those two methods, we need to include the os module, which allows us to interact with the operating system. The two common approaches to creating a directory using Python are as follows. Using 'os.mkdir()' Method: To Create a Single Directory ... Read More
There are several benefits to using operating system-based virtualization. You can run multiple operating systems on the same physical hardware. This can be useful for testing different operating systems, running legacy applications, or saving space on your computer. Another advantage is that it can improve performance. By isolating each operating system from others, virtualization software can prevent conflicts and improve overall system performance. It creates a layer of abstraction between the hardware and the operating systems. The virtualization software is installed on the host operating system. It manages this layer of abstraction and allows guest operating systems to access ... Read More
In Python we can use FTP (File Transfer Protocol) by importing the ftplib module, it will provide a simple interface to access FTP servers to retrieve files and process them locally. ftplib module allows us to write Python programs that perform a variety of automated FTP tasks. Objectives of FTP The objectives of FTP are as follows FTP provides file sharing. FTP helps us to encourage the use of remote computers. FTP is used to transfer the data reliably and efficiently. Some Common tasks we can perform using FTP in Python by utilizing the 'ftplib' module are as follows: ... Read More