#unix

SShahrukhshahrukh-khan.hashnode.dev

What is a Shell?

When you first open a terminal in Linux, you aren't just looking at a "black box." You are interacting with a Shell. But did you know there isn't just one type of shell? What is a Shell? Think of the Shell as a translator. You speak "Human" (typing c...

Feb 122 min read

GDGábor Dombayawklab.com

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...

Feb 107 min read

KMK M ASHIQUR RAHMANashiqurrahmanblogs.hashnode.dev

How Open Source Became a Movement: From Xerox to Linux

Open source did not begin as a marketing term or a licensing model. It began as a response to a fundamental shift in how software was controlled. What started as a practical frustration inside a research lab eventually grew into a global movement tha...

Feb 55 min read

GDGábor Dombayawklab.com

AWK: the Zero-Setup Pre-Processor

Modern data pipelines most often fail at their beginning, not their end. A malformed record, an unexpected delimiter, or an encoding anomaly can cause otherwise robust processing engines to abort after consuming significant computational resources. T...

Feb 17 min read

GDGábor Dombayawklab.com

AWK Syntax Essentials

Syntax is based on The AWK Programming Language, 2nd Edition by Alfred V. Aho, Brian W. Kernighan, and Peter J. Weinberger. Pattern A pattern determines when an action is executed. When a pattern matches an input line, its associated action is execut...

Jan 318 min read

XSXianyu Shengxianyu-sheng.hashnode.dev

Unix环境编程：杂谈

动态加载 API 进程管理什么是进程进程的创建进程的终止与遗言函数进程资源回收进程的映像更新 ps -o pid,ppid,pgrp,comm 这个linux命令是将当前终端上运行的进程打印出来进程中使用环境变量子进程环境变量改变不会更改父进程的环境变量进程间通信有名管道不存储数据其本身大小为 0 当一个进程写入数据进去时如果没有进程读取数据那么该写进程就会堵塞在哪里同理如果读进程想要读取数据但是却没有数据...

Jan 303 min read

GDGábor Dombayawklab.com

Why AWK in 2026?

Because small is beautiful. Because AWK gives unmatched bang for the buck. Because AWK is the antidote to AI slop. Because AWK is always there when you need it. Because AWK assumes your data fits in a pipe, not a cluster. Because AWK makes you t...

Jan 291 min read

XSXianyu Shengxianyu-sheng.hashnode.dev

Unix环境编程：第一章

1.1操作系统的介绍 1.2 计算机系统的分层 1.3 编译过程 ?上一个命令的运行结果 echo 就是输出上一个命令的运行结果哎linux环境下文件中查找一个元素即在命令模式下输入/+你要查找的字符即/printf 这样然后找到之后 n表示查找下一条 shift+n表示上一条 file+文件名查=查看文件是否可运行 1.4 多模块开发变量的定义是为变量扩充作用域而变量的声明需要为变量内存空间 gcc -c 文件检验是否存在语法错误 nm 目标文...

Jan 301 min read

ATAkhil Tiwaricurl-dev.hashnode.dev

cURL For Developer's

Before explaing cURL first we need to understand What is server? and why we need to talk them.Think server as a big library which is accessible for user 24/7, Server holds large amount of data, to get a data you need to send a request to server. Your...

Jan 275 min read

GDGábor Dombayawklab.com

Practical AWK Benchmarking

"I think in terms of programming languages you get the most bang for your buck by learning AWK", said Brian Kernighan, the K in AWK (Lex Fridman podcast #109). AWK was created in Bell Labs in 1977, and its name is derived from the surnames of its au...

Jan 2611 min read

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#unix

What is a Shell?

The BEHILOS Benchmark

How Open Source Became a Movement: From Xerox to Linux

AWK: the Zero-Setup Pre-Processor

AWK Syntax Essentials

Unix环境编程：杂谈

Why AWK in 2026?

Unix环境编程：第一章

cURL For Developer's

Practical AWK Benchmarking

#unix

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#unix

What is a Shell?

The BEHILOS Benchmark

How Open Source Became a Movement: From Xerox to Linux

AWK: the Zero-Setup Pre-Processor

AWK Syntax Essentials

Unix环境编程：杂谈

Why AWK in 2026?

Unix环境编程：第一章

cURL For Developer's

Practical AWK Benchmarking