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The shred command in Linux is a powerful tool that allows users to permanently delete files and make them unrecoverable. This command is particularly useful when you want to ensure that sensitive data is completely removed from a system. In this article, we will explore how to use the shred command, complete with examples and outputs. Understanding the shred Command Before we delve into the examples, it's important to understand what the shred command does. When you delete a file in Linux using the rm command, the file is not actually removed from the disk. Instead, the space that the ... Read More
In Python, file handling is a big topic spanning several scores of operations; one such operation is one of reading the first line of a file and this allows you to quickly access and retrieve specific information without reading the entire file. In this present article, we will examine several ways of executing the process of reading only the first line of a file using Python. You can follow the lucid and descriptive explanations and code examples below to understand and master the process of reading the first line of a file. Using the readline() Method To be ... Read More
As a part of file handling operations, in Python, you can carry out the operation of setting the read and write positions within a file to access or modify specific parts of its content. This functionality permits you to navigate and explore through the file performing various operations at desired locations. Through the medium of this article, we will learn to master the operation of setting the read and write positions in a file using Python. You can always follow the descriptive and detailed explanations and code examples given below to understand and gain the skill of positioning within a ... Read More
In Python 2, there was an alternative syntax for using the print statement for printing that involved using the >> operator, also known as the right shift operator. However, this syntax has been deprecated and removed in Python 3. Therefore, if you see code that uses print >> syntax, it is likely written in Python 2 and will not work in Python 3. The correct syntax in Python 2 for redirecting the output of the print statement to a file-like object is using the print statement followed by the >> operator and the file object. Here are ... Read More
In Python, among several functions and other tools that are used to achieve certain functionalities, the print() function happens to be a basic tool for displaying output to the console or terminal. This function allows programmers to achieve several tasks such as, among others, presenting information, messages, variables, and other data to users or for debugging purposes. In this article, we will investigate in detail the functionality and usage of the print() function in Python, through several code examples followed by comprehensive explanations. This will help you to add one more Python skill to your repertoire of code expertise ... Read More
In Python file handling, there are several functions and methods that have different functionalities and are used to achieve specific purposes and tasks. Among such kind as above, the seek() method makes it possible for you to reset the read/write position within a file. This functionality of the method is very helpful when you need to move the cursor to a specific or particular location in the file to carry out subsequent read or write operations. In this article, we will examine several ways how you can make use of the seek() method to reset the read/write position in Python. ... Read More
Excel is a versatile tool used for managing data, creating reports, and analyzing information. Named ranges are an essential feature of Excel that allow you to assign a name to a cell or a range of cells, making it easier to reference that data elsewhere in your workbook. However, sometimes you need to create a dynamic named range that can expand or contract automatically based on the data entered in the cells. This is where dynamic named ranges come in handy. Dynamic named ranges are a powerful tool in Excel that help to simplify your formulas, improve your workflow, and ... Read More
In Python, in the domain of file handling, we come across several different types of operations; one such operation is that of opening a file for writing; this operation allows you to either create a new file or overwrite the existing content with fresh data. In this article, here, we will go through several ways on how to open a file in write mode using Python. To make it easy to understand and learn we provide for several code examples below with stepwise explanations to help master the process of writing files in Python. Opening a File in Write Mode ... Read More
Excel is a widely used spreadsheet software that allows users to organize, analyze, and present data in a structured manner. One of the most effective ways to convey complex data is through charts and graphs. While Excel provides a wide range of charting options, it can be challenging to create dynamic, interactive charts that engage your audience and allow them to explore data in real-time. In this tutorial, we will explore how to create dynamic interactive charts in Excel. We will cover various techniques, including data visualization best practices, chart formatting, and the use of Excel's built-in features to create ... Read More
Excel is a powerful tool that offers various functionalities to its users. One such feature is the ability to create hyperlinks between sheets, which can save time and effort while navigating through large workbooks. Hyperlinks allow users to jump from one sheet to another within a workbook or to an external file, website or email address. However, not all hyperlinks are created equal. Dynamic hyperlinks, in particular, are especially useful because they can adapt to changes in the target sheet's location, name, or content. In this tutorial, we will guide you step-by-step on how to create dynamic hyperlinks to another ... Read More