How to Install Ubuntu 24.04 LTS on Macbook M1, M2, M3, & M4
Install UTM, then create a virtual machine and use ARM based ISO file to install Ubuntu 24.04 LTS server which then can be converted to desktop environment.
How to Install Drupal on Ubuntu 24.04
To install Drupal on Ubuntu, you have to set up a web server (like Apache), and a database (like MySQL), and do the basic configuration of Drupal itself.
How to Delete a File in Linux
To delete a file in Linux, use the rm command followed by the filename. It permanently deletes files without sending them to a recycle bin.
How to List Users and Groups on Ubuntu 24.04
To list users and groups, use the cat, awk, and getent commands. You can also list individual user and group details.
How to Install Odoo on Ubuntu 24.04
To install Odoo17, first set up the PostgreSQL and necessary dependencies like Python3 Pip and git. After that, you can clone and install Odoo on Ubuntu.
How to Use grep to Find Starting and Ending Pattern in Linux
The special characters “^” and “$” in combination can be used to retrieve words or sentences starting and at the same time ending with a specified character.
How to Use ChatGPT in Linux Terminal
To use the ChatGPT on the Linux terminal, install the “terminalgpt” using the Pip Python package manager. Then login to it with the generated ChatGPT API secret key.
How To Describe a Table in PostgreSQL
To describe tables in PostgreSQL, the “\dt”, “\dt+” or the “\d tab_name” meta-commands and “information_schema” are used.
How to Find String Length in PostgreSQL
In PostgreSQL, the length of the string can be found by using functions like LENGTH(), OCTET_LENGTH(), and BIT_LENGTH().
Understanding DATE Data Type in PostgreSQL
To create a DATE type column, specify the column’s name followed by the DATE keyword. By default, the DATE data type stores data in “YYYY-MM-DD” format.
How to Install CUDA on Ubuntu 22.04?
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.
Fix: Cron Script does not Execute as Expected from crontab
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.
What is /etc/rsyslog.conf File for Configuring System
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.
How to Use Wildcards (*) When Copying with scp?
The wildcard asterisk (*) is used to list all the files for the scp command. Using the asterisk, users can copy multiple files and the whole directory.
How to Test SSD/HDD Health in Linux?
Linux offers the “Smartctl”, and “nvme-cli” command line tools and “Disks” application in GUI to test the health of SSD/HDD.
How to Force SSH Client to Use Only Password Auth?
To force ssh clients to use only password authentication, users must change PublicKeyAuthentication yes to “no,” and add PasswordAuthentication yes.
How to Fix a Client/Server Connection Refused Using netcat?
To fix the client/server “connection refused” error, open the port on the server side and make communication with the client using a specific port.
How Do I Download a Video From an M3U8 File?
A M3U8 consists of the URLs of the playlists, and it can be viewed online or downloaded using the FFmpeg tool. The file is then played using the VLC player.
How to Parse JSON With Shell Scripting in Linux?
JSON scripting is not supported in shell scripting, but with the help of the jq command, it is made possible to the best extent. The curl command also helps.
How to Find Files Differ by Content in Two Directories?
To find out which files differ by content in the given two directory trees, the diff command is used, and if you want a GUI-based tool, use the meld tool.
How to Create MYSQL Database Using Shell Command?
Linux allows users to create a database from the shell using the format
How to Boot into Rescue Mode Or Emergency Mode in Ubuntu 22.04?
To boot into Rescue or Emergency modes, users must enter “systemd.unit=rescue.target” and “systemd.unit=emergency.target” in the boot parameters.
How to Fix “Tab completion errors: bash: cannot create temp file”?
The tab completion error: bash: cannot create temp file is fixed by freeing up the Inodes in /tmp directory by removing the unnecessary files and directories.
How to Use Shell Equality Operators (=, ==, -eq)
The shell equality operators (=, ==, -eq) compare the values of the variables. The “= and ==” is for strings, and “-eq” is used to compare the numerical values.
What are libstdc++.so.6 and GLIBCXX_3.4.20
The libstdc++.so.6 is a shared library to simplify the development of C++ applications and the GLIBCXX_3.4.20 is a version symbol used in it.
What is the Difference Between SFTP, SCP, and FISH Protocols
SFT, SCP, and FISH protocols are used to transfer files securely over the internet, and the differences have been discussed in the article
How to Back Up Entire Linux System?
The dd and tar commands back up the entire Linux system. For GUI, the GNOME Disk Utility provides this facility. The data is then recovered.
How to Access Windows Files From Ubuntu?
To access the Windows files from Ubuntu, a dual-boot system, the mount command is used with the NTFS-3G driver to mount the unmounted disk.
How to Check if a Variable Exists in a Bash if Statement?
To check if a variable exists in an if statement in bash scripting, the -v flag is used. However, checking a variable for a null or zero value -z flag is used.
How to chmod 777 All Subfolders of /var/www?
To chmod 777 or grant all permissions to all users to all the subdirectories of /var/www, the -R flag of the chmod command is used.
How to Hide curl Output in Linux?
The curl command’s output could be long sometimes, so the output is hidden to avoid cluttering the terminal. However, errors can be displayed.
Is There a Program Like MobaXTerm for Linux Systems?
Yes, there are a few alternatives to MovaXTerm for Linux, such as Terminator, Konsole, Tili, and
Remmina. Each of them has its features, pros, and cons.
What are PPA’s and How to Use Them?
Personal Package Archives or PPAs are used to distribute software to users not available in the official repositories without waiting for official approval.
When Does the System Send a SIGTERM to a Process?
When the kill command is used without a specific signal, then by default, a soft shutdown warning called SIGTERM is sent to the program. It can be ignored.
What is a Superblock, Dentry, Inode and a File?
The superblock, inode, dentry, and file combine to make a virtual file system, with each of them having different uses, but work together in Linux VFS.
CentOS vs. Fedora: Understanding the Key Differences
Explore the key differences between CentOS & Fedora Linux distributions to help you decide which is best for your needs. Find out now.
How to Check Services Running in Linux
Run the command “systemctl list-units –type=service –state=running” or “service –status-all | grep ‘\[ + \]’” to check the running service on Linux.
How To Install Mangohud on Ubuntu 22.04
To install mangohud on Ubuntu, run the command “sudo apt install mangohud -y” in the terminal of Ubuntu because it comes in its default repository
How to install pgAdmin on Ubuntu 22.04
To install pgAdmin on Ubuntu, run the command “sudo apt install pgadmin4 -y” in the terminal to install both web and desktop modes.
How to Fix the “The following packages have unmet dependencies” Error
The error “The following packages have unmet dependencies” is invoked if dependencies are broken, the repository is corrupted, or packages are held back
How to Fix the “Unable to correct problems, you have held broken packages” Error
The “Unable to correct problems, you have held broken packages” occurs when apt repository isn’t updated, has broken dependencies, or the system holds packages.
How to Fix the “sudo: no tty present and no askpass program specified” Error
The “sudo: no tty present and no askpass program specified” issue occurs when the sudo is used but password is not read. It is fixed by the NOPASSWD settings
How to Fix the “mount point does not exist” Error
The “mount point does not exist” issue is when declaring a mount point but the directory does not exist and is fixed by making that directory before mounting.
How to Fix “temporary failure resolving archive.ubuntu.com” Error
The “temporary failure resolving archive.ubuntu.com” issue occurs when the system has internet issues, or the DNS name server is missing.
Python | Convert Dictionary to JSON
The “json.dumps()” function of the json module converts the value of the dictionary into JSON. The value is stored in “keys” and then converted into JSON.
Pandas iterrows() – Iterate over DataFrame Rows
In Python, the pandas “iterrows()” function iterates over the DataFrame rows and performs user-defined operations on them.
How to Write String to Text File in Python
The “write()” function is used to write the string value in the text file. The new string value can be written into a new or existing text file
How to Install Python Pip on Ubuntu 22.04
Python pip can be installed using the”$ sudo apt install python3-pip -y” command on Python3, while in Python2, “$ sudo python2 get-pip.py” command.
How to Install Budgie Desktop Environment on Ubuntu 22.04
To install Budgie Desktop Environment, use the command “sudo apt install ubuntu-budgie-desktop -y”. It is available on the default repository of Ubuntu 22.04.
How to Install Nautilus on Ubuntu 22.04
To install Nautilus on Ubuntu 22.04, use the command “sudo apt install nautilus -y” because it comes in the default repository of Ubuntu.
How to install Docker-CE on Ubuntu 22.04
To install Docker-CE in Ubuntu 22.04, open the terminal and run the command ”sudo apt install docker-ce docker-ce-cli containerd.io -y”.
How to Fix the “python setup.py egg_info failed with error code 1” Error
The “python setup.py egg_info failed with error code 1” issue occurs when the setup tools, ez_setup are not installed or upgraded, including the pip installer.
How to check which shell is in use in Linux
There many methods to check the name of the shell, such as using the process ID or a few echo commands to check the shell in use.
How to Install RPM Packages on Ubuntu 22.04
To install the RPM Packages on Ubuntu 22.04, use the “alien” program with its “-i” option or convert the RPM file into a Debian file and then install it using “dpkg”.
How to install Microsoft ODBC driver for SQL Server
The Microsoft ODBC driver is installed by downloading its key and config file and then installing the driver itself from the apt repository after the update
How to install NoMachine on Ubuntu 22.04
To install NoMAchine, download its Debian package from its official website and install it with the command ”sudo dpkg -i nomachine_8.0.168_2_amd64.deb”.
How to Use grep on All Files in a Directory
To execute the grep command to search through all the files in a directory, you need to navigate to the directory or enter the exact path and use the “*” sign.
Escape Characters in Python | Explained with Examples
In Python, Escape characters such as “single quote”, “double quote”, “newline”, “carriage return”, “tab” etc are used to place characters inside the string.
Python | Convert JSON to Dictionary
In Python, the “json.loads()” function of the JSON module is used to convert the simple and nested JSON data file into the dictionary.
Python List Comprehension Using IF Condition
In Python, “list comprehension using the if-condition” is used to create the list and perform an operation on the existing elements of a list.
How to Create a New User on Ubuntu 22.04?
A new user can be created on Ubuntu 22.04 using the “$ sudo adduser
How to Fix “package docker-ce has no installation candidate” Error
The “package docker ce has no installation candidate” issue occurs when the Docker repository is not added. This error can be fixed by adding a repository.
How to Install Ubuntu 22.04 on VirtualBox
To install Ubuntu 22.04 on Virtualbox, you need to create a virtual machine, and then the ISO file of Ubuntu 22.04 is added to the Virtual Machine.
Install Multimedia Codecs on Ubuntu 22.04 LTS
To get the latest codecs on Ubuntu 22.04, you need to install the multimedia codecs using the “sudo apt install ubuntu-restricted-extras” command.
How to change the password on Ubuntu 22.04
Password can be changed on Ubuntu 22.04 using the Command Line Interface ($ passwd
Python Logical AND Operator | Explained
The logical “and” operator returns the boolean value “True” when both of the operands are “True”. This operator checks multiple conditions at one time.
Memory Error in Python
The causes and solutions of python memory errors are discussed and how python memory error occurs due to the use of 32-Bit python installation.
How to Rectify an Unexpected Indent Error in Python
In Python, an unexpected indent error is rectified by removing the wrong spaces or tabs from the code and following the code block structure.
How to Read a Text File in Python
The “read()” function, “read(n)” with parameter value, and “readline()” function is used to read a text file completely, specifically and line by line.
Mean of Numpy Array | Explained With Examples
The mean of the NumPy array is calculated using the “np.mean()” function. This function can calculate the mean of “1D”,”2D”, and “3D” arrays along with the axis.