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$ ip route show
default via 192.168.1.1 dev eth0 192.168.1.0/24 dev eth0 proto kernel 10.0.0.0/24 via 192.168.1.20 dev eth0
$
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ADB CommandsOpen technology index
65 entries02AndroidOpen technology index
37 entries03Linux, OS Concepts and NetworkingOpen technology index
36 entries04Commands and PackagesOpen technology index
30 entries05Linux Host, Ubuntu, SysAdminOpen technology index
28 entries06Operating System ConceptsOpen technology index
26 entriesRecently updated
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Fastboot Says “No Permissions”? Diagnose USB Before Editing udevADB Commands
Existing libraryA fastboot permission error is fixable, but only after you know Linux can see the bootloader. This diagnostic path separates USB, mode, tool, group, and udev-rule failures without normalizing sudo fastboot.
Who Is Really Logged In to This Linux Machine?Basic Linux Commands
Existing libraryThe who command can settle a tense “is anyone still using this server?” moment—provided you understand what its session records can and cannot prove.
Let the Linux tree Command Explain a DirectoryLinux Commands
Existing libraryTurn an unfamiliar directory into a readable map with tested tree commands for depth, filtering, metadata, symlinks, and machine-readable output.
Find the Right Files on Linux Without Fear of the ResultLinux
Existing libraryBuild predictable Linux find expressions for names, types, sizes, and file contents, then inspect every match safely before taking action.
Safely Rename Parts of Filenames and File ContentLinux
Existing libraryRenaming `memory_map.c` to `memory_mapping.c` and changing identifiers inside source files are separate operations. This guide previews both, handles unusual filenames, refuses collisions, keeps backups, and makes rollback practical.
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Field guideUncategorized
49Pass Structs to Functions in C: Pass by Value vs Pass by Reference
In C programming, a struct groups related variables under a single type name. When passing a struct into a function, you can pass it by value (making a complete copy of the data) or by reference (passing a pointer).
Field guideLinux
50Deduplicate and Sort Email Lists with Linux Command Line Tools
Cleaning raw logs or subscriber export files to get a unique list of email addresses is a common data cleanup task. Rather than importing large files into spreadsheets or writing custom scripts, standard Linux terminal utilities like grep , tr , sort , and uniq can extract and deduplicate thous
Field guideLinux
51Grep and Replace Strings in Source Code via the Linux Command Line
Use grep , sed , and find to search and replace strings across a codebase instead of doing it manually. Step 1: Find a String with grep -r — recursive -n — shows line numbers -w — matches whole word -e — the pattern Step 2: Replace a String in One File with sed -i — edits in place s — subs
Field guideBash / Shell Scripts
52Check Internet Connection Using a Bash Script
For automation, cron jobs, or IoT devices, you often need to verify internet connectivity before continuing. Here are three bash methods to do it.
Field guidePython
53Building Your First REST API with Django Rest Framework
Django Rest Framework (DRF) extends Django to build RESTful APIs. Set Up the Project Add rest_framework to INSTALLED_APPS in settings.py .
Field guideADB Commands
54Adb shell – generate input events to browse applications / menu
Following are the adb shell commands for generating input events which can help us to browse the … Read more
Field guideADB Commands
55Enabling adb support with Linux kernel for new platform
If you are developing/porting a new Linux kernel for some android platform, the first thing we need … Read more
Field guideCommands and Packages
56Fix : Lost Sudo user in Linux
Add “Sudo” user If somehow you Lost a “sudo” user which happened to me today, after upgrading … Read more
Field guideDjango & REST Api
57Implement Edit and Delete with Django REST Framework
As we have seen in our previous post, “Writing class based Views in Django REST Framework” we … Read more
Field guideADB Commands
58Change default display timeout settings using adb command
Connect your Android device over adb to get adb shell and check the default screen timeout value … Read more
Field guideCore Kernel
59Understanding Linux Device Tree Syntax (DTS)
DTB = Devicetree blob. Compact binary representation of the devicetree.DTC = Devicetree compiler. An open source tool … Read more
Field guideCommands and Packages
60Install and update npm on Ubuntu
npm is the package manager for the Node JavaScript platform. When we used installed npm on Ubuntu … Read more
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