How to Install a deb File, by dpkg -i or by apt?
To install a deb file in Ubuntu, either we can use the dpkg package manager with its “-i” option or the apt package manager with its “install” option.
kill Command in Linux | Explained
The kill command is used to pass different signals in Linux to manage the behavior of the processes. In this blog, the kill command has been explained in detail.
How to Set or Change the Time Zone in Linux?
To set or change the time zone in Linux, use the commands “tzselect”, and “sudo dpkg-reconfigure tzdata”, or by opening “Settings” of Linux
cp Command in Linux | Explained
The cp command in Linux is used to copy files and directories from different source locations to the destination in the computer
cd Command in Linux | Explained
The cd command in Linux is used to change the directory. We can change our directory to another directory, home directory, or directly to the root directory
su Command in Linux | Switch User
su Command in Linux | Switch User
Excerpt: We can switch from one user account using the terminal instantly. To switch from another user account to the already logged-in user, we use the “su command”.
How to Convert String Into Integer in Python?
To convert the string into an integer, the inbuilt “int()” function is utilized in Python. It returns “TypeErrors” while executing non-string or non-integer
How to Comment in Python?
To comment in Python, a hash symbol “#” is used at the start of any code line. String literals are also utilized to make comments in Python script.
How to Remove Duplicate Items in Python List?
To remove duplicate items from the list, the “set()”, “dict.fromkeys()”, “list comprehension”, and “empty list” along with “if” statements are used in Python.
Python Split String Into List of Characters
To split a string into a list of characters, the “list()”, “extend()”, “List Comprehension”, and “for Loop” are utilized in the Python programs.
How to Find Factorial of a Number in Python?
To find the factorial of a number, the inbuilt “factorial()” function, “Recursion” function, “if-else” statement, and “numpy.prod()” function is used in Python
How to Get and Change the Current Working Directory in Python?
To get the current working directory, use the “os.getcwd()” function, while to change the current working directory the “os.chdir()” is used.
Python Range With Steps
In Python, the “range()” function creates the sequence of numbers by specifying the upper and lower limit with the addition of step size value.
How to Delete or Remove Files and Directories in Python?
To remove or delete files and directories, the “os.remove()”, “os.unlink()”, “os.rmdir()” and “shutil.rmtree()” functions are used in Python.
Python | Convert List Into Tuple
To convert the list into a tuple, the “tuple()” function, “for loop”, and “unpacking list operator (*List, ) ” with a single comma are used.
Python Empty Tuple | Explained
To create an empty tuple, the “tuple()” function and empty parentheses are used in Python. For instance, “()” represents an empty tuple.
Python if.else Statement | Explained With Examples
The “if-else” statement executes a block of code based on the specified condition. If the specified condition is true, then the if block will execute
Python List reverse() Method | Explained
To reverse the list element, the “reverse()” method is used in Python. The “reversed()” function also accepts the list and returns the reversed iterable object.
Python List sort() Method | Explained
To sort the elements of a list in ascending or descending order, the “sort()” method and “sorted()” function is used in Python.
Python String replace() Method | Explained
The “replace()” method in Python replaces the old substring value with a new substring value. By default, it will replace all the occurrences of a substring.
Python While Loop | Explained
“while” loop executes the block of code until the condition remains “True”. It iterates infinite times if the increment/decrement value is not defined.
Sort List of Strings in Python | Explained With Examples
To sort a list of strings, the“sort()” and “sorted()” functions are used in Python. The sorting of data also varies using the key and reverse parameters
Python math.log10() – Logarithm to Base 10
In Python, the “math.log10()” function of the “math” module is used to calculate the logarithm of a given positive number to base 10.
Python | Convert Hex to Decimal
In Python, the hexadecimal to decimal conversion is carried out using the inbuilt “int()” function, “literal_eval()”, “while” loop, and “dictionary”.
How to Copy Files and Directories in Linux?
To copy files and directories in Linux, we can use the command-line interface using the cp command or the GUI method. For a detailed explanation, read this post.
How to Use grep Command to Find Text in Files in Linux
The grep command can be used to find the words in the files of Linux. The words can be found in the current directory and its sub-directories.
Linux | ifconfig Command Examples
In Linux, the purpose of the ifconfig command is to configure the network interfaces, specifically those associated with Kernel modules
What is Uname Command in Linux
The uname command is used in Linux to display the basic information of the computer, including kernel name, hostname, kernel version, and processor type.
What is GRUB in Linux? What is it Used for?
GRUB is the abbreviation of GRand Unified Bootloader and is a bootloader and a boot manager. GRUB plays a key role in the Boot process.
Python input() Function | Explained With Examples
In Python, an inbuilt “input()” function is used to take the user input value and returns it in the form of a string by default.
How to Clear or Empty Dictionary in Python?
To clear all the items of the dictionary, the “dict.clear()” function is used in Python. “del” keyword deletes the dictionary rather than just the items in it.
How to Convert Float to Int in Python?
To convert float to int, the inbuilt functions such as “int()”, “math.floor()”, “math.ceil()”, “round()”, and “math.trunc()” are used in Python.
How to Convert Integer into String in Python?
To convert integers into a string, the inbuilt “str()” function, “.format()” function, “f-string” method and “%s” operator are used in Python.
How to Find the Length of a List in Python?
In Python, an inbuilt “len()” function, the “for loop”, and the “length_hint()” function is used to find the length of the list.
How to Start, Stop & Restart Services in Ubuntu
To start, stop & restart the services on Ubuntu, use any of these“systemctl”, “service”, and “init” command utilities. Read out this article to learn more.
How to Count files in Directory of Linux?
To count files in directory, use the “ls [path] | wc -l”, “find [path] | -type f | wc -l”, “tree [path]”, and “rsync –stat –dry-run -a [path]” commands.
How to Update GRUB on Ubuntu and Other Linux Distributions?
To update GRUB, open the terminal and execute the command “sudo update-grub”. GRUB must be updated to have a smooth performance of the system.
How to Set or Change Hostname in Linux
You can change the hostname on your Linux system using different methods, such as hostnamectl, hostname, nmtui, nmcli, and system settings.
Python String | Replace Character at Specific Position
In Python, “string slicing”, “re.sub()”, “replace()”, and “List Data Structure” methods replace characters at a specific position of the string.
Python for i in range() | Explained With Examples
In Python, the “for” loop iterates on the range() function and operates on each element. The “range()” function must have a “stop” argument value
Python | Create a New File Programmatically
To create a new file in python, the open() function is used. It accepts two parameters: the complete path and the “x” character.
Python | Convert Dictionary Keys to List
The “dict.keys()”, “List Comprehension”, “for loop with append()”, “Unpacking with *” and “itemgetter()“are used to convert dictionary keys to lists.
Python str() Function | Examples
The “str()” function is used to return any input data type as a string. Data types, such as list, dict, etc., can be converted into a string using this function.
Python Access Tuple | Explained
In Python, the index number is used to access the items of a Python tuple. The items of tuples are accessed individually and in the form of ranges.
Python | How to Check if String is Empty?
In Python, the “len()” function, “not” operator, “not with strip()” and “not with isspace()” methods are used to check if the string is empty
How to Get the Dictionary Length in Python?
In Python, the “len()” function, the “for loop with isinstance() function”, and the recursive function are used to calculate the dictionary’s length.
How to Use OR Operator in Python If Statement?
The “OR” operator in Python “if statement” is used to combine multiple conditions and filter out the information based on the specified conditions.
Python math.log2() – Logarithm to Base 2
In Python, the “math.log2()” function of the “math” module returns the logarithm of the number to base 2. The input number must be greater than zero.
Python Numpy – Create Array with Random Values
In Python, the “rand()”, “randint()”, and “np.empty()” functions create “1-D”, “2-D”, and “3-D” arrays with different random values.
Python Numpy Dot Product | Explained
In Python, the “np.dot()” function of the “Numpy” package is used to calculate the dot product of scalar, vectors, 1-D, and 2-D arrays.
Python OpenCV Read Image – cv2.imread()
In Python, the “cv2.imread()” function is used to read the image from the specified file. The image is displayed using another function, “cv2.imshow()”.
Python re.findall() – Find in String using Regular Expression
In Python, the “re.findall()” function of the “regex” module returns the non-overlapping pattern of the given string in the form of a list of strings.
How to Copy Paste in Linux Terminal | A Beginners Guide
Linux distributions are mostly managed through the terminal. In the terminal, different commands are typed. … Read More
How to Install Linux Mint 21 From USB?
To install Linux Mint 21 from USB, first, download the iso file of Linux Mint 21, make the USB bootable with the downloaded iso file, and finally install it on the computer.
How to Install GUI on Ubuntu Server
To get the GUI for the Ubuntu server, install the GNOME desktop environment using the command “sudo apt install ubuntu-desktop -y”
How to Clear apt Cache in Ubuntu 22.04?
Some of the most common usages of the apt command in Ubuntu are updating and … Read More
Is Ubuntu Debian Based?
If you are wondering whether Ubuntu is Debian based or looking for the key similarities and differences between them. Then read this article for more details.
How to Clear Apt Cache and Reclaim Precious Disk Space?
To clear apt-cache and reclaim precious disk space, use either “sudo apt clean -y” or “sudo apt autoclean -y” in Linux distributions.
set.add() Function in Python
Python provides a built-in function named “set.add()” that adds a new element to a set. The set.add() function accepts exactly one argument.
Python math.atan() – Arc / Inverse Tangent
The “math.atan()” function takes a numeric value and returns the inverse tangent of the given number in radians (within the range of “-Pi/2” to “Pi/2”).
How to Install Windows 10 in VirtualBox in Linux?
First, install the VirtualBox on Linux, and download the Windows 10 iso. Then create a machine on VirtualBox and run it to install Windows 10
Fibonacci Series in Python Using For Loop
The “Fibonacci series” is created using the “for loop” iteration of any user-defined range. The Fibonacci series is generated by adding the previous two numbers.
Python Pillow Tutorial
In Python, the pillow module is used for multiples operation on digital images like cropping, filtering, drawing and enhancing, etc
Python math.ceil() | Ceiling of a Number
In Python, the “math.ceil()” function takes positive or negative numeric values as arguments and rounds off the given numbers to the nearest integer.
How to Get Python String Length?
To get the length of a Python string, a built-in function named “len()” or a user-defined function with “for loop” or “if-else” statements is used.
How to Create a Python List of Dictionaries?
To create a Python list of dictionaries, place all the dictionaries within the square bracket using the comma-separated syntax
How to Add or Insert Row to Pandas DataFrame?
In Python, the “append()” function, “DataFrame.loc” and “pandas.concat()” functions are used to add or insert rows to pandas DataFrame.
How to Reset Index of Pandas DataFrame?
The “DataFrame.reset_index()” resets any pandas DataFrame. The index of DataFrame is arranged according to the default index or the user-defined index
How to Sort DataFrame by Column in Pandas?
The “sort_values()” functions with “default parameter”, “descending order”, and “multiple columns” are used to Sort DataFrame by Column in Pandas
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.