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JJJeji Jamesjeji-james.hashnode.devJul 10 · 2 min read

Linux Log Fortress — Access Control & Threat Pattern Detection

In a real SOC environment, a log file is forensic evidence. Before you can analyze it, you need to protect it. This lab walks through the full workflow from locking down file permissions to hunting fo

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RPRebika Parajulipico-ctf.hashnode.devJun 12 · 2 min read

First Grep | CyLab Security Academy (PicoCTF)

First Grep is a General Skill, easy challenge intending on the use of Grep tool. We are provided with the following details along with a file containing flag. Can you find the flag in the file? This w

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RHrenan hafsarlinux-notes.hashnode.devMay 15 · 25 min read

grep and find Commands in Linux

Both commands sometimes are confusing because they can be used to "search" something. However, they behave differently. Command Searches for Example question find Filenames, directories, file ty

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JCJason Corleyjasoncorley.hashnode.devApr 17 · 2 min read

i’m begging you to stop doing grep | awk

i get it, pet peeves are inherently irrational. i would even go so far as to say that’s why we have that phrase for the concept, to illustrate to everyone involved that the thing we are about to rant

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DGDevTools Guidedevtoolsguide.hashnode.devMar 3 · 10 min read

Code Search at Scale: Sourcegraph, OpenGrok, and Alternatives

Code Search at Scale: Sourcegraph, OpenGrok, and Alternatives At some point, grep -r stops being enough. Maybe your codebase spans 50 repositories. Maybe you need to find every caller of a deprecated function across all of them. Maybe you are onboard...

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PKPratiksha kadamlinuxlinks.hashnode.devFeb 16 · 9 min read

Advanced Linux Commands:

If you work with Linux servers on AWS, the command line isn’t optional — it’s your superpower. Whether you’re debugging a web app on an EC2 instance, parsing logs from NGINX, or analyzing user accounts, mastering text-processing tools like awk, sed, ...

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GDGábor Dombayawklab.comFeb 10 · 7 min read

The BEHILOS Benchmark

In his book Unix: A History and a Memoir, Brian Kernighan recounts his favorite grep story from the early days of Unix. Someone at Bell Labs asked whether it was possible to find English words composed only of the letters formed by an upside-down cal...

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JJamboreejamboree.hashnode.devJan 20 · 6 min read

GRE Preparation Strategies for Busy Professionals

GRE preparation is no small feat, especially for busy professionals juggling demanding careers, personal responsibilities, and limited time. However, with strategic planning and the right approach, achieving a high score is entirely within reach. Thi...

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UGUtkarsh Gaurhexplain.hashnode.devJan 17 · 2 min read

10 `grep` Commands That Make You Look Like a Linux Power User

If you have ever found yourself scrolling endlessly through log files or trying to locate a single configuration line buried inside thousands of lines of output, you already know the pain. This is exactly where grep shines. It is one of those Unix to...

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Aangelleeangellee177.hashnode.devOct 24, 2025 · 18 min read

Linux Core Concepts: Kernel, Commands, and Job Management

Personal notes As usual, this article was born because I took the “Introduction to Linux (LFS101)” course from the Linux Foundation. At first, I took this course because I have an upcoming technical interview for a Cloud Development Engineer position...

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#grep

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Trending tags this week

Linux Log Fortress — Access Control & Threat Pattern Detection

First Grep | CyLab Security Academy (PicoCTF)

grep and find Commands in Linux

i’m begging you to stop doing grep | awk

Code Search at Scale: Sourcegraph, OpenGrok, and Alternatives

Advanced Linux Commands:

The BEHILOS Benchmark

GRE Preparation Strategies for Busy Professionals

10 `grep` Commands That Make You Look Like a Linux Power User

Linux Core Concepts: Kernel, Commands, and Job Management