You might wonder how to multiply two numbers in Unix, but you don’t know where to start. In the Bash shell, you can use the expr command to evaluate expressions, which prints their value to standard output. Several operators are supported, including multiplication, division, subtraction, and division by multiple. There’s also the * operator, which …
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There are three data streams in the Linux/Bash shell: standard input (stdin), standard output (stdout), and standard error (stderr). Typically, the command line will read text from stdin and write the output to stdout. Similarly, applications can send data via stderr. One way of using these streams is to connect them to a file, known …
Using Linux can be very boring, especially if your computer screen has a purple background. To change the background color in Ubuntu, use the terminal. To change the color of the taskbar, open the CSS file in your terminal and change the value of the #lockDialogGroup field. Now, the purple background should be gone! Here …
In Linux, a command called lsb_release prints all the information about your system, including its OS type. This command has several options, including the option to omit the headers from the output. The command’s man page gives detailed information about the various options. Another way to find out your current OS version is by using …
When the system boots, the network manager starts. This service is part of the system’s initialization subsystem, which may be upstart or Systemd. Its icon is a small picture of two computers, one of which is the network interface. When the network manager icon is active, it shows the hardware and connection types. If the …
If you are new to the world of Debian, you may wonder what is Debian Net Install. This operating system uses network installation to install the entire system. You can download the network installation CD, which contains a minimal set of software and then fetch the rest of the packages over the internet. The network …
In order to open DOCX files on your Ubuntu computer, you’ll need Microsoft Word. You can install Microsoft Word using Snap packages, which are compatible with 75% of systems. Microsoft Office is not installed directly on Ubuntu, but certain versions are compatible with the system through a WINE compatibility layer. Google Docs is another popular …
If you’re wondering, “Can Macbook Pro Run Linux?” you’ve come to the right place. Macs have excellent performance, great battery life, and great durability, all of which make them a great choice for Linux. It’s also an excellent solution for old Macs that can’t get updates through macOS anymore. You can run Linux on your …
You can find the latest version of PHP on Ubuntu 2.2. If you want to roll back to an earlier version, follow these steps. Then, you can run sudo apt-get remove dbconfig-php to remove it. Then, follow the instructions in the next section. If you’re having problems with the program, see How to rollback to …
Linux users can split files into parts quite easily. File splitting commands are especially useful if you are sharing files over a network that is unstable or has a size limit. Aside from splitting files into parts, there are also additional features available in some file splitting utilities. To learn more, consult the man pages …