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Swift vs. Objective-C: Which Programming Language to Choose for Effective iOS Coding in 2025
If you want to create iOS apps, the first thing you should do is choose a programming language: the latest Swift or the time-tested Objective-C? From the very beginning, Swift was positioned at Apple as a simple and understandable language; Objective-C, on the contrary, has...
Guide to Check for Open Ports in Linux
An open port, also called a listening port, is essentially an address on your network system to which data packets can be sent. Many services make use of different ports. An open port can receive packets from anywhere hence it is important to configure its...
How to Exclude Files and Directories Using Rsync
Rsync, also called Remote Sync, is a popularly used command in Linux for managing files and directories remotely and locally. Through Rsync, we can synchronize, modify, and even transfer files and directories across various servers or locations. Consequently, Rsync also allows for excluding files and/or...
How to Add User to Sudoers or Sudo Group on CentOS 7
When it comes to a professional or technical workspace, dividing privileges to run commands becomes necessary. More so if your team is working on Linux systems since it holds a greater capacity of editing data at hardware levels. One such example is the “root” user...
How to Check For Files and Directories in Bash
Files and file systems are a key part of using Bash. In certain situations, we often need to check if the required files or directories exist in the system or not. There are a number of commands, including ‘test’, that provide the solutions to such...
How to Remove Remote Origin from Git
When you want to remove remote origin from Git, there are multiple ways to do it and reasons to. If the repository is no longer active or there have been work network changes, you may want to remove remote. Remove command The most straightforward way...
Top 15 Best Online Linux Terminals and Bash Script Editors
Do you often find yourself needing to use a Linux terminal but prefer sticking with your current operating system? Or maybe you are thinking about transitioning to Linux but find it somewhat intimidating and would rather practice a few commands before switching over. Whichever the...
60 Useful and Interesting Linux Terminal Commands You Should Learn Today
The terminal is one of the first things you’ll need to familiarize yourself with if you’re using a Unix-based OS. While command-line tools are also available on other operating systems like Windows and MacOS, very few people actually use them or even know about them....
How to Securely Transfer Files on Linux Using the SFTP Command
File Transfer Protocol is an easy way of accessing and transferring files or programs over a network. Better known as FTP, this protocol allows users to access various types of data from a remote computer or server. Although clients can sometimes connect anonymously to a...
How to Use Bash While Loop Command to Automate Tasks Easily
Bash while loop is one of the three basic loops that are a part of this programming language. Just as the other two (until and for loop), this one can be useful when there is a need to repetitively run a series of commands until...
A Guide About the Grep Command to Search Files in Linux
The Linux terminal is a quite powerful utility with numerous useful commands to control your operating system. The global regular expression print command or GREP is among the ones Linux users frequently utilize. You can use Grep to search multiple files for lines that will...
What You Need to Know about the Bash Function
One of the available functions in a Linux-based operating system is the bash function. In its essence, this function is a chain of commands a user can call multiple times. Although it does come with certain limitations, bash can also improve the readability of your...