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Unix+clones

UNIX Shell Programming QuickStart

Post date: April 13, 2005, 02:04 Category: Programming Views: 3261 Comments
Tutorial quote: If you read, write, or maintain programs, the following samples will give you a quick overview of the construction and style of a shell script and introduce you to some of the constructs and syntax found in these programs.
Linux

Bourne / Bash shell scripting tutorial

Post date: October 11, 2006, 20:10 Category: Programming Views: 6088 Comments
Tutorial quote: A Bourne Shell Programming/Scripting Tutorial for learning about using the Unix shell. Learn linux / Unix shell scripting by example along with the theory. We'll have you mastering Unix shell scripting in no time!
Linux

Breaking the SHELL

Post date: May 29, 2005, 01:05 Category: Programming Views: 3196 Comments
Tutorial quote: Shell scripts are a part and parcel of almost all software applications running on UNIX, and the use simply spans from a trivial script, managing automatic database backup to bunch of scripts collaboratively doing complex operation on regular expressions.

Though it's a mere design decision to partition modules between scripts and programming language, but I personally feel that they sometimes come very handy saving lot of time and lines of code, when compared to implementing the same functionality in the programming language in context.And in fact with some exceptions, complexity of a shell script can scale to that of codes in C language. Add to this the power of all those numerous UNIX commands, and just think through, what can be achieved by shell scripts.
Here I will discuss few topics mainly relevant to intermediate shell programmers
Unix+clones

Teach Yourself Perl 5 in 21 days

Post date: November 24, 2005, 20:11 Category: Programming Views: 4290 Comments
Tutorial quote: No previous programming experience is required for you to learn everything you need to know about programming with Perl from this book. In particular, no knowledge of the C programming language is required. If you are familiar with other programming languages, learning Perl will be a snap. The only assumption this book does make is that you are familiar with the basics of using the UNIX operating system.
Ubuntu

QuickStart, The Swiss Army Knife For Ubuntu 8.04 Desktop

Post date: August 17, 2008, 10:08 Category: Desktop Views: 3193 Comments
Tutorial quote: In this article I will show how to install and use QuickStart on an Ubuntu 8.04 desktop. QuickStart is like a Swiss army knife, it allows you to do various things on your Ubuntu desktop: creating and restoring backups, running scheduled backups, backing up configuration files, installing some common applications, installing DVD codecs, deleting unnecessary files, etc.
Unix+clones

How To Look Like A UNIX Guru

Post date: October 30, 2006, 02:10 Category: Miscellaneous Views: 5646 Comments
Tutorial quote: UNIX is an extremely popular platform for deploying server software partly because of its security and stability, but also because it has a rich set of command line and scripting tools. Programmers use these tools for manipulating the file system, processing log files, and generally automating as much as possible.

If you want to be a serious server developer, you will need to have a certain facility with a number of UNIX tools; about 15. You will start to see similarities among them, particularly regular expressions, and soon you will feel very comfortable. Combining the simple commands, you can build very powerful tools very quickly--much faster than you could build the equivalent functionality in C or Java, for example.

This lecture takes you through the basic commands and then shows you how to combine them in simple patterns or idioms to provide sophisticated functionality like histogramming. This lecture assumes you know what a shell is and that you have some basic familiarity with UNIX.
Unix+clones

Mastering recursive programming

Post date: June 22, 2005, 09:06 Category: Programming Views: 3004 Comments
Tutorial quote: Recursion is a tool not often used by imperative language developers, because it is thought to be slow and to waste space, but as the author demonstrates, there are several techniques that can be used to minimize or eliminate these problems. He introduces the concept of recursion and tackle recursive programming patterns, examining how they can be used to write provably correct programs. Examples are in Scheme and C.
Gentoo

Hardened Gentoo PaX Quickstart

Post date: May 21, 2005, 21:05 Category: Security Views: 3512 Comments
Tutorial quote: This tutorial explains how to setup PaX enabled kernel and take advantage of it.
Linux

Basic Linux Commands With Man Pages

Post date: October 11, 2006, 16:10 Category: Installing Views: 2940 Comments
Tutorial quote: Here are some basic commands to get you started in the wonderful world of Linux and other UNIX variants. All of these commands should work from your command prompt (regardless which shell you’re using).
Unix+clones

Execute Commands on Multiple Linux or UNIX Servers part II

Post date: December 28, 2005, 10:12 Category: System Views: 3298 Comments
Tutorial quote: I have already covered how to execute commands on multiple Linux or UNIX servers via shell script. The disadvantage of script is commands do not run in parallel on all servers. However, several tools exist to automate this procedure in parallel. With the help of tool called tentakel, you run distributed command execution. It is a program for executing the same command on many hosts in parallel using ssh (it supports other methods too). Main advantage is you can create several sets of servers according requirements. For example webserver group, mail server group, home servers group etc. The command is executed in parallel on all servers in this group (time saving). By default, every result is printed to stdout (screen). The output format can be defined for each group.
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