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![How to use preg_match in PHP [Explained with examples]](https://www.cyberithub.com/wp-content/uploads/2023/11/preg_match.jpg)
In this article, we will see how to use preg_match in PHP. preg_match provides a powerful, efficient, and flexible way to perform pattern matching, data validation, and string manipulation, which are common requirements in web…
In this article, we will see how to install veracrypt on Ubuntu 22.04. If you are looking for a disk encryption software that can work on all famous platforms such as Windows, Linux and MacOS…
In this article, we will see how to install veracrypt on Ubuntu 20.04. VeraCrypt is a free and open source disk encryption software for Windows, Linux and MacOS. It is not just another disk encryption…
In this article, we will see how to install Gdebi on Ubuntu 22.04. Many times you might have observed that when you try to install any debian(.deb) packages on your Ubuntu/Debian based systems through dpkg…
In this article, we will see how to solve add-apt-repository: command not found error. add-apt-repository is a free and open source utility to add PPA repository on Ubuntu/Debian based systems. Sometimes it is possible that…
In this article, we will see 20 dig command examples in Linux. dig, also known as domain internet groper is a free and open source tool for querying the domain name system(DNS). It is very…
In this article, we will see how to install whois utility on Ubuntu 20.04 based systems. If you are looking for the registration details of the domain, including the owner's name (or organization's name), contact…
In this article, we will see 13 Linux commands/shell scripts to check if you are connected to internet. Many times when you are unsure about the availability of internet connection in your linux system, you…
![How to Install Nmap on Ubuntu 22.04 [Working Steps]](https://www.cyberithub.com/wp-content/uploads/2023/11/ins_nmap.jpg)
In this article, we will see how to install nmap on Ubuntu 22.04. Nmap, also known as network mapper is a free and very powerful open source network discovery and security auditing tool used for…
![How to Install fping on Ubuntu 22.04 [Easy Steps]](https://www.cyberithub.com/wp-content/uploads/2023/11/install_fping.jpg)
In this article, we will see how to install fping on Ubuntu 22.04. fping is a free and open source utility used for sending ICMP echo requests to all the hosts in the network. It…
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