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GBlog
Three 90 Challenge: Bigger and Better
As we transit into the new phase, it's essential to fuel our inner drive for success. On popular demand, GeeksforGeeks is happy to announce that we are back with the Thre...
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Number of Antisymmetric Relations on a set of N elements
Given a positive integer N, the task is to find the number of Antisymmetric Relations on the given set of N elements. Since the number of relations can be very large, so p...
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Mathematical
Combinatorial
Algebra
maths-power
DSA
find_by_order() in C++
The find_by_order() is a built-in function of Ordered Set which is a Policy Based Data Structure in C++. Policy-based data structures are not part of the C++ Standard Temp...
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Misc
Sorting
Hash
Advanced Data Structure
Competitive Programming
cpp-advanced
cpp-set
DSA
Number of Asymmetric Relations on a set of N elements
Given a positive integer N, the task is to find the number of Asymmetric Relations in a set of N elements. Since the number of relations can be very large, print it modulo...
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Mathematical
Combinatorial
Algebra
DSA
Shell Script to Validate Integer Input
Here we are going to see a shell script which validates an integer. We are going to display whether the input entered is an integer or an invalid input.Approach:Take input...
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Linux-Unix
Shell Script
Picked
JoomScan Vulnerability Scanner Tool in Kali Linux
JoomScan is a free and Open source tool available on GitHub. It's a vulnerability scanner tool. This tool is written in perl programming language. When a website is being ...
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Linux-Unix
Cyber-security
Kali-Linux
Length of smallest subarray required to be removed to make remaining elements consecutive
Given an array arr[] consisting of N integers, the task is to find the length of the smallest subarray required to be removed to make the remaining array elements consecut...
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Arrays
Greedy
Mathematical
array-rearrange
subarray
two-pointer-algorithm
DSA
File Timestamps - mtime, ctime and atime in Linux
Timestamps are records for the times in which actions are performed on files. A timestamp is useful because it keeps records of when a file was accessed, modified, or adde...
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Linux-Unix
Picked
Sysmon – Graphical System Activity Monitor for Linux
Sysmon is a graphical system monitor for Linux. It shows the information about the CPU, GPU, Memory, HDD/SDD and network connections. It is similar to the Windows task man...
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Linux-Unix
How To
How to Install and Use Htop on Linux?
For Linux systems, Htop is an interactive system control, process viewer, and process manager. It was created as a replacement for the Linux program top, and it has a lot ...
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Linux-Unix
Picked
How To
mapfile Command in Linux With Examples
mapfile also called (read array) is a command of the Bash shell used to read arrays. It reads lines from the standard input into an array variable. Also, mapfile must read...
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linux-command
Linux-Unix
Shell
How to Find Linux File Creation Time using Debugfs?
Everything is treated as a file in Linux, and all the information about a file is stored in inodes, which includes the crucial metadata about a file such as creation time,...
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Linux-Unix
Picked
How To
Shell Script to Measure Size of a File
Understanding the size of a file is fundamental for various reasons. It allows users to monitor disk space usage, identify large or unnecessary files, and make informed de...
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Linux-Unix
Shell Script
Picked
Shell Script to Delete the Zero Sized File Using If and For
There are many files in our system which are of no use for us as temporary files. So we need to clear all those files, but it is very hectic to find each file and delete t...
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Linux-Unix
Shell Script
Picked
java.nio.file.LinkPermission Class in Java
The java.nio.file.LinkPermission class handles permissions for link creation operations. The permission allowed by these class are as follows:Permission nameWhat permissio...
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Java
Picked
Java-NIO package
Java-Classes
How to Use Gzip and Keep Original File in Linux?
Gzip is a command-line tool that by default comes with any Linux Operating System. Gzip is commonly used to compress and decompress files. It reduces the size of the file ...
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linux-command
Linux-Unix
Picked
How To
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