Tag Archives: cent os

How to change default shell in Linux

How to change default shell in Linux

Want to change the default shell in Linux/Unix/MacOS? Try:

chsh -s /path/to/shell user

For example, set the shell to /usr/local/bin/zsh for user tom, enter:
which zsh
chsh -s /usr/local/bin/zsh tom

For more information see Howto: Changing Linux Login Shell

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How to assign a grep command value to a variable in Linux/Unix

How to assign a grep command value to a variable in Linux/Unix
How do I store grep command output in shell variable? What is the syntax to store the command output into a variable in Linux or Unix? You can use the for any given input files, selecting lines that match one or more patterns. By default the output shown on screen. But, you can store output […]
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Ubuntu Linux Install GNU GCC Compiler and Development Environment

Ubuntu Linux Install GNU GCC Compiler and Development Environment
How do I install GNU/GCC (C and C++) compiler and related tools (such as make, debugger, man pages) collection under Ubuntu Linux operating system using command line options? You need to install following packages on Debian and Ubuntu Linux: build-essential package – Installs the following collection to compile c/c++ program on a Ubuntu Linux including: […]
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How to compile and install Tarsnap on a Ubuntu/Debian Linux

How to compile and install Tarsnap on a Ubuntu/Debian Linux
A Tarsnap service is a secure online backup system for Linux, OSX, *BSD or UNIX-like system. They encrypt and store data in Amazon S3. The services also use rsync-like algorithms, and only backup data that has been changed since the last dump. The backups are protected by a security key only known to a backup […]
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How to change the screenshots save file location in MacOS X

How to change the screenshots save file location in MacOS X

I know how to capture my whole screen or just part of it. The screenshot is automatically saved to my desktop, and it is cluttering the entire desktop with .png screenshot files. How can I change where screenshots are saved on my MacOS X system instead of the default desktop location?
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7 Awesome Open Source Analytics Software For Linux and Unix-like Systems

7 Awesome Open Source Analytics Software For Linux and Unix-like Systems
Web analytics is nothing but the measuring web traffic. It is not limited to measuring web traffic. It includes:

  1. Analysis
  2. Data collection
  3. Reporting of web data for purposes of understanding and optimizing web pages

Google Analytics is the most widely used cloud-based web analytics service. However, your data is locked into Google Eco-system. If you want 100% data ownership, try the following open source web analytics software to get information about the number of visitors to your website and the number of page views. The information is useful for market research and understanding popularity trends on your website.
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How to pair Pi-hole with an OpenVPN to block ads and increase privacy on Ubuntu / Debian Linux

How to pair Pi-hole with an OpenVPN to block ads and increase privacy on Ubuntu / Debian Linux

I followed your tutorial to install an OpenVPN on my Ubuntu server in the cloud. How can I install Pi-hole to block ads, reduced my 4G/3G/LTE traffic on the same Debian or Ubuntu Linux server?
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How to install wget on RHEL/CentOS 7 using yum

How to install wget on RHEL/CentOS 7 using yum
I am trying to download a file using ‘wget http://url’ syntax, but I am getting an error: bash: wget: command not found How do I fix this problem? How can I install wget on a CentOS/RHEL 7 or 6 server using ? GNU Wget is a free and open source software package for retrieving files […]
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System76 brings 4K display Ubuntu Linux laptop for Pro users

System76 brings 4K display Ubuntu Linux laptop for Pro users
Finally, some good news for Apple fans who crashed System76 website a few days back. Apple makes a good laptop. However, they lack the option to add additional RAM or ports or graphics card. The new System76 Oryx laptop has a 4K HiDPI display. If you are a sysadmin, DevOps, or developer, give it a try to System76.
System76 Oryx Pro with 4K display
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