How to Delete Lines from a File Using sed Command?
Sed command stands for Stream Editor, is used to perform basic text transformations in Linux. sed is one of the important command, which plays major role for file manipulation. It can be used to...
2daygeek :- Linux & Open Source Tips
How To Set up Automatic Security Update (Unattended Upgrades) on Debian/Ubuntu?
One of an important task for Linux admins to make the system up-to-date. It’s keep your system more stable and avoid unwanted access and attack. Installing a package in Linux is a piece of...
How To Find Out Linux Operating System (OS) Installation Date And Time?
You may curious to know when the Linux Operating System (OS) was installed on your machine. It could be various reason. But recently i had a requirement to find out this information. The requirement...
How to Upgrade Linux Mint 19.1 (Tessa) to Linux Mint 19.2 (Tina)?
Linux Mint 19.2 “Tina” was released on Aug 02nd 2019, it is a long term support release, which is based on Ubuntu 18.04 LTS (Bionic Beaver). It will be supported until 2023. It comes...
How to Upgrade Debian 9 (Stretch) to Debian 10 (Buster)?
Debian 10 “Buster” was released on July 06th 2019, after 25 months of development with lot of new features and updated packages. It’s Long Term Support (LTS) release and will be supported for the...
How To Configure systemd to Start a Service Automatically After a Crash in Linux?
There are many reasons for the process to crash/go down on Linux system, which you can investigate and fix the issue but it may take a while. But one thing you can do it...
Bash Script to Automatically Start a Services When it Goes Down on Linux
There are many open source monitoring tools are currently available in market to monitor Linux systems performance. Those are send an email alert when the system reaches the specified threshold limit for CPU, Memory,...
How To Display Asterisks When You Type Password In Linux Terminal?
Terminal is a crucial tool for Linux admin, which allow them to perform any kind of task in a secured manner. When you type password in any of the GUI portal that will be...
Bash Script to Send a Mail When New User Account is Created in System
There are many open source monitoring tools are currently available in market to monitor Linux systems performance. It will send an email alert when the system reaches the specified threshold limit. It monitors everything...
How to Enable Canonical Kernel Livepatch Service on Ubuntu LTS System?
Canonical was introduced Live patch Service in Ubuntu 14.04 LTS system. Live patching service allows you to install and apply critical Linux kernel security updates without rebooting your system. This means, you don’t need...
