Sudo: allow command without password

Sudo: allow command without password

Nearly every Linux distribution these days uses the sudo utility as a way to grant non-privileged users the ability to execute commands as privileged root users. You may have noticed that after entering your sudo password once, you can continue to execute commands without needing to re-enter it for five minutes. We can even extend this convenience by allowing any sudo commands to be executed without a password.

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How to install and configure Starship on Linux

One of the things that make Linux-based operating systems great is the high degree of customization they offer us. We can customize and adapt (almost) everything to our needs, from the options the kernel is compiled with, to the  desktop environment. On any Linux distribution, the terminal emulator is an essential tool for power users and system administrators. Starship is a free and open source plugin written in rust we can use to customize our favorite shell prompt by using a variety of modules.

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Linux epoch time

Linux epoch time

Epoch time is a convention used on Unix and Linux systems that many applications rely on for calculating time between dates and other similar functions. Some Linux commands like date and perl have an epoch option built in. An epoch denotes the number of seconds that have passed since the date January 1st, 1970.

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Linux Cheat Sheet

Linux Cheat Sheet

In this tutorial, we will list various practical Linux commands to be used only as a reference guide and by experienced Linux users. Not all Linux commands will be available on your system by default so consider installing the relevant package before use.

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perl: warning: Falling back to the standard locale error message on Linux

Falling back to the standard locale – Solution

If you are trying to use the perl command in your terminal or execute a script coded in the language, you may encounter the Falling back to the standard locale error. This indicates that your Linux system is missing a particular software package that Perl relies on, or the software has become corrupted or misconfigured. In this tutorial, we will show you how to remedy the error and get your perl command working again.

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Pax command examples on Linux

Pax command examples on Linux

pax is an archive utility somewhere between cpio and tar. This is just because it is independent of the specific archive format, and supports a wide variety of different archive formats. It can perform simple tasks as creating a compressed archive of a selected directory or it can as much easily create a daily incremental backup.

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Introduction to Tmux

Introduction to terminal multiplexer Tmux

Tmux is a terminal multiplexer: it let us run and manage multiple terminal sessions from a single screen. This is specially useful when connecting to remote machines using ssh, since, among the other things, it allows us to keep processes started from those terminals running in the background when we disconnect from the session (or logout and close the remote secure shell altogether), letting us re-attach to it at a later time.

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Retrieve Weather information using Linux command line

Retrieve Weather information using Linux command line

Although most Linux users will use a GUI tool to retrieve weather information, it is also possible to do get a weather forecast from the command line. Whether you are stubborn command line user or you wish to automate flower watering using your Linux system and cron, there are several different options that can do the job. Some tools even allow you to retrieve information such as current outside temperature, wind, pressure, humidity, altitude, and more, directly from your Linux terminal.

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Ubuntu 22.04 GPG error: The following signatures couldn’t be verified

Ubuntu 22.04 GPG error: The following signatures couldn’t be verified

The Ubuntu 22.04 GPG error: The following signatures couldn't be verified is the most common error when attempting to include third party package repositories to the apt package manager. The GPG error should rather be treated as a warning against potential package installation from unknown sources. Therefore, the GPG error message prompts the user to verify and manually import the third party signature belonging to relevant package developer.

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