Alê Emmanuel Rabelo Guedes·2d agoRebuilding Unix Tools in C (Part 4): lines (original tool, not part of Unix)argument parsing · range structs · sort & merge · early-exit streaming
K Alnashri·4d agoWhat Really Happens When You Type ls *.c and Press Enter?When I started at Holberton School, one of the first commands I learned was ls. It lists files. Simple enough. Then I added a star, typed…
Dev Talk·4d agoAWK Remove Duplicates: Lines, Columns and CSV RowsThe shortest way to remove duplicate lines from a file in Linux is an AWK one-liner that most people copy without ever reading. It is worth…
Dev Talk·5d agoAWK Count Occurrences: Lines, Words, Characters & Values“How many times does this appear?” can mean four different things: how many lines contain it, how many times it appears in total, how many…
Dev Talk·6d agoAWK Sum Column: Total, Average, Min, Max and Group ByAdding up a column of numbers is one of the best reasons to learn AWK. There is no spreadsheet to open and no script to write: one line…
Hackliva Academy·Oct 27PHP2Shell: How to Detect It Before It Becomes a ShellA practical, safety-first guide to identifying PHP2Shell exposure
Bhavesh Bhagat·Oct 27pwn.college CTF Writeup: Linux Luminarium — Hello HackersYour first steps into the command line, one challenge at a time.
Beenu Pulikottil·Oct 24PHP2Shell: Three Critical Vulnerabilities, One Uncomfortable LessonWhat happened, why it matters, the latest update, and what organisations should do.
İlteriş Kaan Pehlivan·Oct 23PHP2Shell: CVE-2026-109618 and CVE-2026-109619PHP2Shell: CVE-2026–109618 and CVE-2026–109619
DevBot667·Oct 20What Happens When You Type ls *.c and Press Enter?A step-by-step look at how the shell expands wildcards before running a command.
