How to Switch a Database in Postgres
To switch a database in Postgres, execute the “\c db_name” or “\connect db_name” command in psql. Or you can switch a database manually using pgAdmin.
To switch a database in Postgres, execute the “\c db_name” or “\connect db_name” command in psql. Or you can switch a database manually using pgAdmin.
To use the Debian 12 Live USB, download the “Debian 12 Live ISO” from its official website. Make the USB bootable with the downloaded ISO file.
To ping Google from Windows and Linux, open the Command Prompt or terminal respectively. Run the command “ping Google.com” and the information will be displayed
The lxml can be installed on Ubuntu by running the command “sudo apt install lxml” in its terminal. Another way is to use the Pip Python package manager.
To install the Hugging Face Transformers Library on Ubuntu, install the Pip package manager and run the command “pip install transformers” in the terminal.
To install OpenSSL on Debian 12, either run the “sudo apt install openssl” in the terminal or download the source package from its official website.
To change the color of the “echo” command’s output, users can use the ANSI Escape Code. These codes are used to change both the text and background color.
o install the Streamlit on Linux, 3 different methods can be used. First is by using the pip, second is with the conda, and the last is by using the source.
To install Streamlit on Ubuntu, use the pip package manager by running the command “pip install streamlit” in the terminal.
A Color Picker can be installed on Ubuntu, either by downloading from Snapcraft or the Flathub with the Snapcraft and Flatpak package managers respectively.
To use the Debian Backport, add the Debian Backports repository. This is added to use the software packages from the testing release.
To restart the Network Interfaces and Network Adapters on Linux distributions, the users can use the systemctl command.
To install Roblox on Debian 12, first install the “WineHQ”. Then, download the installer of Roblox and install it with the Wine command.
To install the ZFS on Debian 12, open the terminal and run the command “sudo apt install zfsutils-linux -y”. To set up, follow the explained steps in this post.
In Debian, the “debian_frontend” is set to noninteractive mode. This mode allows the Debian users to manage the packages without interaction.
To check the CPU temperatures, install and use the software packages of “psensor”, “lm-sensors”, “hardinfo”, “glances”, and “smartmontools” in Linux distros.
To install PyTorch on Linux, two different methods including anaconda, and the pip packages are used and these methods are explained in this blog.
To install Steam on Debian 12, open the terminal and run the command “sudo apt install steam -y”. The installation has been explained in this blog.
To install the Code::Blocks on Ubuntu, run the command “sudo apt install codeblocks -y”. Also, it can be installed using the Flathub and Debian packages.
To disable the IPv6 on Debian 12, either open the sysctl configuration file or blacklist the IPv6 kernel module. Both methods are explained in this blog.
To fix the “bash:ping: command not found” error in Ubuntu, make sure the package is installed and it is located in the $PATH environment variable.
To search for Debian’s packages, use any of the commands from apt, apt-file, apt-cache, aptitude, dpkg, dlocate, and snap.
The Robo 3T is a user-friendly interface to manage MongoDB databases. To install it, run the command “sudo snap install robo3t-snap” in the terminal.
To install Discord on Debian 12, use the Debian and tar package by downloading it from its official website. Also, use the Snapcraft or flatpak packages.
To install the Samba on Debian, open the terminal, run the command “sudo apt install samba -y”. Make the changes in the configuration file and restart Samba.
To add a Debian repository, either edit the sources.list file or use the GUI method by accessing the “Software & Updates”.
To install the i3 Window Manager on Ubuntu, open the terminal and run the command “sudo apt install i3 -y”. Its installation has been explained in this blog.
To use the apt-get command for managing the packages, follow its general syntax “sudo apt-get [options] [command] [package name]” on Debian 12.
To fix the ifconfig command not found in Debian, make sure the updated package of the net-tools has been installed on the computer.
To shift from Debian Stable to Debian Testing, open the sources.list file and replace the “bookworm” with “testing”, then upgrade the packages
To set up the static IP address on Debian 12, one can use the “Network Manager” or edit the “/etc/network/interfaces” file.
To enable the non-free packages on Debian 12, open the sources.list file. Then add the “non-free” at the end of every line which begins with “deb”.
To configure the sources.list on Debian 12 for ensuring the latest updates of security and softwares, open the sources.list file located at /etc/apt directory.
To add the users in the sudoers file, by replacing the username, run “sudo usermod -aG sudo [username]” the command in the terminal.
To install ChatGPT on Ubuntu, either download its Debian package or install its snap from Snapcraft. ChatGPT can be used to find solutions to different queries.
To install the KDE Plasma Desktop on Debian 12, either run the command “sudo apt install kde-plasma-desktop -y” or run the tasksel command utility.
To install the XFCE desktop environment on Debian 12, use the default repository package with “sudo apt install task-xfce-desktop -y”.
To install Golang on Debian 12, the easiest method is to use the default repository package with the “sudo apt install golang -y”.
To add the user to the group, run the command “sudo usermod -a -G [Group Name] [User]” in Debian 12. It can be deleted from the group using the deluser command.
When Debian is installed on the computer, a password is required to set it up either during installation or on the first login.
To set up the FTP server with the VSFTPD, install it with “sudo apt install vsftpd -y” and then add the “FTP user” to the FTP user list.
To install the Visual Studio Code on Debian, download its Debian package from the link and install it with the command ”sudo apt install ./file_name”.
To install the Minecraft server on Debian 12, first, install the JDK package and then download the Java script for the Minecraft installer.
Update packages of Debian 12 with “sudo apt update” and then execute the command, “sudo apt install gnome/stable -y”, to install the GNOME desktop environment.
To install Docker on Debian 12, run the command “sudo apt install docker.io -y” after updating Debian’s packages. This post explains its installation in detail.
To install the VMware Workstation Pro 17 on Debian 12, download the “installer bundle” from its official website. Run the installer after making it executable.
To install Nginx on Debian 12, open the terminal and run the command “sudo apt install nginx -y”. The installation of the Nginx has been explained in this post.
To install the git on Debian 12, update the packages using the “sudo apt update” and then install with “sudo apt install git -y”.
For installing Webmin on Debian 12, download its repository from the official website of “Webmin” and then run the command “sudo apt install webmin -y”.
Download the PHP script of the PHP-Composer installer and run the installation command explained in this blog for installing PHP Composer on Debian 12.
To install the package Brave Browser, download its repository or the Debian package, also, snapcraft and flathub can also be used to install it.
To install the curl command utility on Debian 12, run the command “sudo apt install curl -y”. It can be used by following the “curl [options] [url]” syntax.
The hostname can be changed on Debian 12, by executing different commands, editing the hostname file, or from the “Settings”.
To install the xrdp server (remote desktop) on Debian 12, install the package from the default repository by running the command “sudo apt install xrdp -y”.
To install PostgreSQL on Debian 12, run the command “sudo apt install postgresql postgresql-contrib -y” using its default repository.
To install the Node.js and NPM on Debian 12, run the “sudo apt install nodejs npm -y” command in the terminal from the default repository.
To install the Apache web server on Debian 12, run the command “sudo apt install apache2 -y” in the terminal. Apache helps to host the websites.
To install Google Chrome on Debian 12, three different methods can be used. By adding the Google Chrome repository, it’s deb or flathub package.
In this post, both methods of installing the JAVA, using the default repository and Debian package, on Debian 12 have been explained with a step-by-step guide.
The VirtualBox Guest Additions can be installed on Debian 12 by inserting the CD image of Guest Additions, mounting it, and running the “VBoxLinuxAdditions.run”
To install the Pip package on Debian 12 use the default repository of Debian 12 by executing the command “sudo apt install python-pip -y”
To install Python on Debian 12, either use the package available in the default repository of Debian or build the source code for installing Python.
To install the OpenJDK-8 on Debian 12, download the tar package from the official website of Oracle because it is not available in the Debian 12 repository.
To add and remove the users on Debian 12, either use the terminal or the GUI method. In the terminal use the “adduser” and “deluser” to add the users.
To upgrade from Debian 11 to Debian 12 Bookworm, update all the packages. Replace “bullseye” with “bookworm” in “Sources” file. Then full-upgrade the software.
The latest release of Debian known as Debian 12 or Debian Bookworm has come with new features and improvements to enhance the performance and user experience.
The ServerAliveInterval and ClientAliveInterval specify the time before the connection is closed after no response from either client or server.
To install CUDA on Ubuntu, execute the “sudo apt install nvidia-cuda-toolkit” command. Before it, check the status of the GPU that supports the CUDA or not.
The cron script does not execute as expected is fixed by starting cron daemon, providing valid path to the script, giving execute permissions and fixing script.
All the messages in Linux (kernel and system) are passed through the rsyslog.conf file. The file has Global Directives, Modules, Rules, Selectors, and Actions.