Types of Built-In Functions Tableau provides several types of built-in functions that are used to manipulate and analyze data in calculated fields. Tableau functions help in data transformation, calculation, and analysis. These functions are categorized into:- Number Functions (Math operations) String Functions (Text manipulation) Date Functions (Date calculations) Logical Functions Read more…
Example : A Python program to Reverse each character of the String word. Example : A Python program to Reverse each word of the String Sentence. Example : A Python program to check whether the String is Palindrome. Example : A Python program to display the Output in a Formatted Read more…
Example : How to remove Extra Space from a String using Regular Expressions sub() function in Python. Example : How to Validate a Phone Number from a String value using the Regular Expression match() function in Python. Example : How to validate a String value with the required pattern for Read more…
Definition Regular expressions (regex) are a powerful tool in Python that are used for matching desired patterns in strings/text. Features Regular expressions (regex) allow us to search, match, and manipulate strings based on patterns. We can test our regex patterns using tools like regex101.com. ‘re’ Package/Module Functions Python provides the ‘re‘ Read more…
Definition In Python, a string is a sequence of characters enclosed within single (‘ ‘), double (” “), or triple quotes (”’ ”’ or “”” “””). Strings are immutable, i.e. they cannot be changed after creation. Strings in Python are powerful and come with many built-in methods for manipulation. String Read more…
Example : A Python program to display the Message/Values using a Class and an Object. Example : A Python program to display the sum of two values using a Class and an Object. Example : A Python program to display the sum of two values using Multiple objects. Example : Read more…
Firewalls are critical for securing Linux systems by controlling incoming and outgoing network traffic based on predefined rules. A firewall is a security system that monitors and controls network traffic. Linux firewalls operate at the kernel level using Netfilter, a packet-filtering framework. Firewalls perform filtering i.e., It blocks or allows Read more…
DNS DNS(Domain Name System) is a hierarchical system used to translate human-readable domain names (e.g., example.com) into their respective machine-readable IP addresses (e.g., 192.0.2.1). In other words, a DNS Server resolves domain names into IP addresses and vice versa. Structure/Components of DNS DNS consists of several components:- Zones and Domains: A Read more…
Introduction Managing partitions in Linux is a critical system administration task that involves dividing physical storage devices into logical sections called partitions. Proper partition management ensures efficient disk usage, better performance, improved security, and reliable system operation. Partitioning is essential for organizing disk storage in Linux. It allows us to Read more…
Linux permissions are a fundamental aspect of system security and user management. Basic Linux Permissions Linux employs a three-tiered permission system to control access to files and directories. Each file or directory has three main permission types: Permission Types Read (r): This permission allows viewing the contents of a file Read more…