Posted inPython
How to Check if a File Exists in Python with isFile() and exists()
In Python, there are situations where you might need to verify whether a file exists. Why is it important to check if a file exists? Checking if a file exists…
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How to Loop Through an Array in JavaScript – JS Iterate Tutorial
An array is a single variable that holds elements of different data types, allowing them to be accessed using one reference. It is an ordered collection of values, where each…
Bash Scripting Tutorial – Linux Shell Script and Command Line for Beginners
Process automation in Linux often relies on shell scripting, where a file containing a sequence of commands is executed as a single script. In this guide, we'll cover the fundamentals…
Posted inINTERVIEW QUESTIONS Linux
Linux Commands for DevOps Interview Questions
Introduction In the world of DevOps, proficiency in Linux command-line tools is a must-have skill. Whether you are a seasoned DevOps engineer or aspiring to be one, knowing how to…
Posted inLinux
How to Delete a File or Directory in Linux – Command to Remove a Folder and its Contents
In Linux, deleting files or directories is a basic yet essential task that every user should be familiar with. While it may appear simple, there are various methods to remove…
Posted inPython
Python Switch Statement – Switch Case Example
Until Python 3.10, there was no feature equivalent to the switch statement found in other programming languages. As a result, to execute multiple conditional statements, you would have had to…
Posted inLinux
How to Copy a Directory in Linux – Use the cp Command to Copy a Folder
There are many situations where you might need to copy a folder in Linux, whether for backup, sharing, or making edits. This is a common task that can be easily…
Posted inDevOps
How do I undo the most recent local commits in Git?
Undo a commit & redo $ git commit -m "Something terribly misguided" # (0: Your Accident) $ git reset HEAD~ # (1) [ edit files as necessary ] # (2)…
Posted inLinux
How to Extract or Unzip .tar.gz Files in Linux
Introduction A .tar.gz file is a commonly used compressed archive format in Linux environments. It combines multiple files and directories into a single file, reducing their overall size. This format…
Posted inLinux
How to Save a File in Vi / Vim and Exit (:wq, :x, ZZ)
Quick Answer: To save a file in Vi/Vim and exit, press Esc to enter normal mode, then type :wq and press Enter. You can also use :x or ZZ to…