An A-Z Index of the Bash command line for Linux Commands marked • are bash built-ins Many commands particularly the Core Utils are also available under alternate shells (C shell, Korn shell etc). More bash commands: Linux Command Directory from O'Reilly, GNU CoreUtils.SS64 bash discussion forumLinks to other Sites, books etc Using Linux to Teach Kids How to Program, 10 Years Later (Part I By Anderson Silva In last month's article, I talked about the Logo programming language as a tool to help you introduce mathematics and programming concepts to kids. This month, I am going to take you one step further into Logo programming and show you some more advanced concepts like loops, conditional statements, procedure definition, and (do I dare?)
Writing device drivers in Linux: A brief tutorial “Do you pine for the nice days of Minix-1.1, when men were men and wrote their own device drivers?” Linus Torvalds In order to develop Linux device drivers, it is necessary to have an understanding of the following: C programming. Some in-depth knowledge of C programming is needed, like pointer usage, bit manipulating functions, etc. Microprocessor programming. Entry Level Credential: Linux Essentials Linux adoption continues to rise world-wide as individual users, government entities and industries ranging from automotive to space exploration embrace open source technologies. This expansion of open source in enterprise is redefining traditional Information and Communication Technology (ICT) job roles to require more Linux skills. Whether you’re starting your career in Open Source, or looking for advancement, independently verifying your skill set can help you stand out to hiring managers or your management team. The Linux Essentials Professional Development Certificate (PDC) is a great way to show employers that you have the foundational skills required for your next job or promotion. It also serves as an ideal stepping-stone to the more advanced LPIC Professional Certification track for Linux Systems Administrators. The Linux Essentials Professional Development Certificate validates a demonstrated understanding of:
Linux Set or Change User Password How do I set or change Linux system password for any user account? Both Linux and UNIX use the passwd command to change user password. The passwd is used to update a user’s authentication token (password) stored in shadow file. The passwd changes passwords for user and group accounts. Using Linux to Teach Kids How to Program, 10 Years Later (Part I By Anderson Silva Exactly ten years ago, I was writing my very first article for the Linux Gazette. Back in 1999 I was a college student with some interest in education and a somewhat new Linux user. I wrote a short article about my own experience with the programming language Logo. In that article, I stated: Today I am 21 years old, and I still like playing around with Logo.
Linux System Calls This article aims to give the reader, either a kernel novice or a seasoned programmer, a better understanding of the dynamics of system calls in Linux. Wherever code sections are mentioned, I refer to the 2.3.52 (soon to be 2.4) series of kernels unless otherwise noted. The Linux Kernel in Brief The most widespread CPU architecture is the IA32, a.k.a. x86, which is the architecture of the 386, 486, the Pentiums I, Pro, II and III, AMD's competing K6 and Athlon lines, plus CPUs from others such as VIA/Cyrix and Integrated Device Technologies. Because it is the most widespread, it will be taken as the illustrative example here. First, I will cover the mechanisms provided by the IA32 type of CPU for handling system calls, and then show how Linux uses those mechanisms.
grep () NOTE: click here if you get an empty page. grep, egrep, fgrep - print lines matching a pattern grep [options] PATTERN [FILE...] grep [options] [-e PATTERN | -f FILE] [FILE...] Grep searches the named input FILEs (or standard input if no files are named, or the file name - is given) for lines containing a match to the given PATTERN. Operating System - Linux Linux is one of popular version of UNIX operating System. It is open source as its source code is freely available. It is free to use. Linux was designed considering UNIX compatibility.
Debugging Memory on Linux All programs use memory, even ones that do nothing. Memory misuse results in a good portion of fatal program errors, such as program termination and unexpected behavior. Memory is a device for handling information. The GNU Awk User’s Guide This file documents awk, a program that you can use to select particular records in a file and perform operations upon them. Copyright © 1989, 1991, 1992, 1993, 1996–2005, 2007, 2009–2014 Free Software Foundation, Inc. This is Edition 4.1 of GAWK: Effective AWK Programming: A User’s Guide for GNU Awk, for the 4.1.1 (or later) version of the GNU implementation of AWK. Linux Tutorials Tutorials Shared by the Internet Community How to find the swap space in Linux You can use the swap command to find the current swap space in any Linux machine. If you dont know the swap space is used for virtual memory by the Install PowerDNS and PowerAdmin on an Ubuntu 14.04 VPS In this tutorial, we will show you how to install PowerDNS and Poweradmin on an Ubuntu 14.04 VPS with Nginx, MariaDB and PHP-FPM.