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UNIX tips: Become a better blogger with UNIX
Did you know that blogging and UNIX(R) go hand in hand? The native Web and text-processing tools of UNIX enable you to create your blogs quickly and easily. Discover some handy tips for improving your UNIX blogging skills.
Also available in: Chinese  
Articles 10 Oct 2006
UNIX tips and tricks for a new user, Part 4: Some nifty shell tricks
When writing a shell program, you often come across some special situation that you'd like to handle automatically. This tutorial includes examples of such situations from small Bourne shell scripts. These situations include base conversion from one string to another (decimal to hex, hex to decimal, decimal to octal, and so on), reading the keyboard while in a piped loop, subshell execution, inline input, executing a command once for each file in a directory, and multiple ways to construct a continuous loop. Part 4 of this series wraps up with a collection of shell one-liners that perform useful functions.
Also available in: Chinese  
Tutorial 20 Feb 2007
UNIX tips and tricks for a new user, Part 3: Introducing filters and regular expressions
Discover the power of UNIX(R) filters. In this tutorial, you'll learn about the grep family in depth, including the syntax of regular expressions in many UNIX utilities. You'll also find out more about the stream editor, sed, as well as examine the awk pattern scanning language through examples and explanations.
Also available in: Chinese  
Tutorial 12 May 2006
UNIX tips and tricks for a new user, Part 2: The vi text editor
The vi text editor might seem counterintuitive to new users but, make no mistake, there is a good reason this 30-year old tool is still widely used by many of the best developers in the world. The vi text editor separates operations into insert mode and command mode, which gives you ultrafast access to key commands that can edit, insert, and move text in on-the-fly, user-defined segments.
Also available in: Chinese  
Tutorial 07 Nov 2006
UNIX tips and tricks for a new user, Part 1: File maintenance tools
Systems administrators can use a number of programs to maintain files in a UNIX(R) system from the command line. In this tutorial, you'll experiment with commands, such as cd, cp, and tar, to navigate a UNIX file system from the command line and work with files and directories. The cd command changes directories, cp duplicates files or directories, and tar quickly groups files into an archive. You'll also learn how to deal with file permissions and perform simple input/output.
Also available in: Chinese  
Tutorial 26 Sep 2006
AIX tips for RHEL4 administrators
Are you broadening your skills as a Linux systems administrator into various flavors of UNIX? Have you found yourself in charge of IBM UNIX servers on short notice? Get a rundown of the differences and similarities between Red Hat Enterprise Linux and IBM AIX so that you can perform day-to-day activities with ease.
Also available in: Chinese   Russian  
Articles 17 Nov 2009
Tips for implementing NPIV on IBM Power Systems
Chris Gibson shares some tips for implementing NPIV in an AIX and Virtual I/O Server environment on IBM POWER7 systems.
Also available in: Chinese  
Articles 11 Oct 2011
Tips on designing a preprocessor for C++ using Antlr
Learn how to use Antlr to create a C++ preprocessor. Using this approach to create the C++ compiler, you don't need a separate preprocessor engine. Instead, the preprocessor engine can be integrated as part of the lexer.
Articles 20 May 2008
Tips for implementing PowerHA in a virtual I/O environment
In this article, get tips on implementing PowerHA in a virtual I/O environment. Take a look at the design and layout for a simple two-node PowerHA cluster, and understand why the virtual network configuration is an important aspect of the PowerHA configuration.
Also available in: Chinese  
Articles 16 Feb 2010
10 tips for sensible systems administration
Benjamin Franklin: scientist, scholar, statesman, and . . . systems administrator? Yes, 200 years or so before the birth of UNIX, Franklin scribed sage advice to keep systems humming. Here are 10 of Franklin's more notable tips.
Also available in: Chinese  
Articles 10 Mar 2009
vi tips and tricks: Ten cool commands sure to impress your friends
Amaze your friends with cool vi tips and tricks that will improve the efficiency of your file editing. This article takes you through ten of the less well-known vi commands that should form part of any serious vi user's toolkit.
Also available in: Chinese  
Articles 27 Jul 2010
Expand the capabilities of your Tomcat Web server
This tutorial is a must-have guide for any Web or application server administrator. Although the implementations are slightly different from Apache Tomcat and other Web servers, this tutorial breaks down in a logical and concise way many advanced administrative tasks necessary for successfully hosting, deploying, and managing multiple Java 2 Platform, Enterprise Edition (J2EE) Web applications. Learn how to set up, configure, and secure your Tomcat server, and discover tips and tools for advanced deployment considerations.
Tutorial 16 Sep 2008
Configuration of Oracle RAC 11g on IBM AIX using IBM GPFS 3.5
This tutorial explains how to configure Oracle RAC using two nodes, and covers the concepts, pre-requisites, hardware and software configuration, and the troubleshooting tips for the errors encountered during configuration. This tutorial covers everything starting from using IBM® General Parallel File System (IBM GPFS™) and configuring the grid, followed by installing the database, and finally creating the database instance. Considering the demand for this configuration from various customers, this tutorial can be very useful in understanding Oracle RAC and setting up a cluster.
Tutorial 05 Feb 2014
Got performance impacts of interfacing COBOL with other languages? Reduce them!
Often businesses and government agencies need to interface COBOL with other languages as a more efficient way of updating their enterprise systems than replacing COBOL programs with those in other languages. In reality, COBOL interfaces come with some limitations. In this article, the author explains the performance impacts of interfacing COBOL with other languages and gives some tips to avoid becoming reactive to adverse impacts.
Also available in: Chinese  
Articles 25 Jun 2012
How to test REST APIs for IBM Systems Director using Java
IBM Systems Director is a platform management solution that is used to manage physical and virtual systems in a multi-system environment. It supports various virtualization technologies and multiple operating systems across IBM and non-IBM platforms. This tutorial explains basic steps, tips and tricks to automate REST API testing for IBM Systems Director using Java™ code.
Also available in: Chinese  
Tutorial 07 May 2012
Fun with Sendmail on AIX
Using Sendmail on AIX may be considered a thing of the past, with all the available choices for mail servers on the market. However, Sendmail still has its uses. This article provides some tips and tricks for using Sendmail on AIX.
Also available in: Chinese  
Articles 06 Apr 2010
Migrating to AIX 7.1 with nimadm
This article provides tips for migrating to AIX 7.1 using nimadm and general advice and guidance for ensuring a successful migration.
Articles 22 Oct 2012
Solaris to AIX
Are you moving away from Oracle or Sun Microsystems equipment to IBM System p servers? Are you more familiar with zones and LDOMs than HMCs and VIO servers? This article provides practical tips for migrating from Solaris to IBM AIX servers.
Also available in: Chinese   Spanish  
Articles 24 Aug 2011
Porting open source projects to z/OS UNIX, Part 1: Open source network retriever
Discover tools, techniques, and tips to improve your UNIX and z/OS software ports. This article describes a real-word software port, with examples of how various porting challenges are resolved. If you are a software developer porting software to UNIX, you will find these techniques invaluable in avoiding common pitfalls, resolving bugs, and improving your productivity.
Articles 13 Apr 2010
Inline assembly - start from scratch
This article is for C/C++ programmers who use inline assembly and are working on the IBM® POWER® processor architecture. It presents two scenarios to introduce the basic usage and basic syntax of inline assembly for beginners. The article also poses intermediate-level questions and, by answering these, makes it clear how and why common mistakes can happen. Some tips are also included for coding practice.
Also available in: Chinese  
Articles 20 Nov 2012
10 steps to UNIX nirvana
Discover several time-saving tips and freely available tools that both new and experienced C++ developers can use.
Also available in: Chinese  
Articles 03 Mar 2009
Install and configure a development Web server in UNIX
Get a detailed, step-by-step approach to installing and configuring a development or test Apache Tomcat server. Along the way, pick up helpful tips on how to build and administer your Web or application server in a UNIX environment.
Tutorial 15 Jul 2008
IBM PowerHA SystemMirror cluster migration to IBM POWER7
This article provides the tips for migrating an IBM® PowerHA® SystemMirror cluster from IBM POWER6® to IBM POWER7® processor-based servers. This step-by-step guide describes how to migrate a high-availability (HA) cluster to POWER7, upgrade the cluster from IBM HACMP™ to PowerHA, and migrate shared cluster volume groups for fast disk takeover.
Also available in: Chinese  
Articles 04 Apr 2013
Using cron to automate maintenance
To leverage round-the-clock computing, tasks must run at all hours of the day. You could punctuate your sleep with waking interludes to log in and run this command or that command on dozens of machines, or you can enjoy your forty winks and turn the work over to the ubiquitous cron, a daemon, or perennial process, to execute commands on a schedule. From very often to every so often, cron happily minds the clock and runs jobs day or night. Learn how to configure and maintain cron, and discover just some of its many uses.
Also available in: Chinese  
Tutorial 07 Oct 2008
Learn 10 good UNIX usage habits
Adopt 10 good habits that improve your UNIX(R) command line productivity -- and break away from bad usage patterns in the process. This article takes you step-by-step through several good, but too often neglected, techniques for command-line operations. Learn about common errors and how to overcome them, so you can learn exactly why these UNIX habits are worth picking up.
Articles 12 Dec 2006
Tools to aid debugging on the AIX platform
This article discusses tools that assist AIX application developers in debugging their applications. This is especially helpful when you have to work in a customer environment where you have less debug information.
Articles 20 Mar 2009
Port Fortran applications
Discover how to port Fortran-based High Performance Computing applications, such as computational fluid dynamic (CFD) modeling, weather modeling, and linear algebra packages, using IBM XL compilers and gnu compilers on large clusters. The solutions in this article are equally applicable in all types of porting work in Fortran or any UNIX(R)- or Linux-based systems. Though C/C++ and other programming languages are popular, with strong features and widespread use, Fortran is still the favorite for the scientific and engineering community because of its performance.
Articles 01 Apr 2009
The VIO cheat sheet
Do you want to consolidate multiple AIX systems under a single System p server in ways that maximize your investment return on disk and network resources? Have you been confused about technical terms like SEAs, IVE, or NPIV? This article introduces you to the latest AIX technology, virtual I/O, and provides a cheat sheet on how to set up a simple yet robust server and client environment.
Also available in: Chinese  
Articles 20 Jul 2010
Learn 10 more good UNIX usage habits
As a follow-up to Michael Stutz's excellent article, this article provides 10 more good habits to adopt that will improve your UNIX command-line efficiency. Learn about common errors and how to overcome them, and discover exactly why these 10 UNIX habits are worth picking up.
Also available in: Chinese  
Articles 27 May 2008
Practical AIX troubleshooting
What do you do when things don't exactly work as planned? How do you tackle those really good, head-scratching problems in AIX where servers don't seem to work right? In this article, you'll learn the basic skills of troubleshooting AIX in practical, day-to-day situations.
Also available in: Chinese  
Articles 19 Jan 2011
Speaking UNIX: Managing multitudes of machines the mild-mannered way
Cloud computing may currently be all the rage, but there is a silicon lining to each calculating cumulus: hardware and software require very real upkeep. Learn how to manage gobs of machines right from the command line.
Articles 14 Sep 2010
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