Find and replace while preserving case with sed Finding and Replacing Text with Case Sensitivity Using sed The Challenge Sometimes we need to replace a specific word in a file while maintaining its original c 2 min read 07-10-2024 41
modifying the cscope DB so that file path can be relative to new sandbox Navigating Codebases with Cscope A Guide to Modifying the Database for Relative File Paths Cscope is a powerful tool for navigating and understanding large code 2 min read 05-10-2024 27
Hard Link is breaking with npm install Hard Links Breaking with npm install A Common Problem and Its Solutions If you re encountering the error Hard link is breaking with npm install you re not alone 2 min read 05-10-2024 23
loading env variable from file in makefile Loading Environment Variables from Files in Makefiles Makefiles are powerful tools for automating build processes They often rely on environment variables to co 2 min read 05-10-2024 33
Split the data of the particular column from the file using unix command Extracting Data from a Column A Guide to Unix Commands Extracting specific data from a column in a file is a common task when working with data in a Unix enviro 2 min read 04-10-2024 24
Cannot reproduce the effect of mallopt(M_PERTURB, 256) with MALLOC_PERTURB_=256 Understanding the Discrepancy Between mallopt M PERTURB 256 and MALLOC PERTURB 256 The behavior of dynamic memory allocation can sometimes be influenced by the 2 min read 04-10-2024 34
Systemctl service error permission denied while using root and all the right permissions Systemctl service Error Permission Denied Even as Root Encountering a Permission denied error when using systemctl as root even with seemingly correct permissio 2 min read 03-10-2024 36
HTML Content is not recognized in mail utility Why Your HTML Email Isnt Showing Up Troubleshooting and Solutions Have you ever spent hours crafting a beautiful HTML email only to have it arrive in your recip 2 min read 03-10-2024 27
How can extract data single line from file and other process in each that line? Processing Data Line by Line A Guide to Efficient File Handling Reading and processing data line by line is a common task in many programming scenarios This app 2 min read 03-10-2024 66
Inconsistent behaviour of the `O_NONBLOCK` flag Unmasking the Inconsistencies of O NONBLOCK in Linux The O NONBLOCK flag in Linux is a powerful tool for building asynchronous and non blocking I O systems Howe 3 min read 02-10-2024 30
Why reading the contents of a socket takes so long to finish Why Does Reading from a Socket Take So Long Have you ever found yourself waiting impatiently for data to be read from a socket only to experience a frustratingl 2 min read 02-10-2024 31
Extracting CPU Vendor Name via cpuid on qemu-XV6 returns "Genuntelntel" on my AMD machine Why is my AMD CPU Showing as Genuntelntel on QEMU XV 6 Have you ever run a CPU identification command on a QEMU XV 6 virtual machine and found it reporting your 2 min read 02-10-2024 31
Assign maxsize for disk space using shell scrip Setting Disk Space Limits with Shell Scripts A Guide to quota Managing disk space effectively is crucial for maintaining system performance and stability Shell 2 min read 02-10-2024 32
multi-threading and catching signals Navigating the Interplay of Multithreading and Signal Handling in Python When it comes to creating high performance applications multithreading is a valuable to 3 min read 30-09-2024 30
Why does my simple HTTP server need two instances running in order to work? Why Does My Simple HTTP Server Need Two Instances to Work Have you ever encountered a strange situation where your simple HTTP server requires two instances run 2 min read 30-09-2024 33
how to print block like characters in unix Printing Block Like Characters in Unix A Guide for Beginners Have you ever wanted to create visual effects using special characters in your Unix terminal Perhap 3 min read 30-09-2024 26
Problem while implementing a function in a conditional bash command using background operator (&) The Perils of Background Processes in Conditional Bash Commands A Practical Guide Lets say you re writing a Bash script and want to execute a function in the ba 2 min read 29-09-2024 31
sh spawn expect - handling multiple lines in expect command Taming the Multi Line Beast Handling Multiple Lines in Expect Commands When working with interactive applications or remote servers via SSH the expect command i 2 min read 29-09-2024 38