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…
Slno Descriptions Links Remarks ## To Convert, Edit, Resize, Crop, Merge and Compress pdf Link1 Link2 Link3 — ## To convert .pages files (created by Apple Pages on MAC os) in Windows MS Word .docx Link1 Link2 ## To Remove a Password From a Protected any type of files 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…
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