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OS/2 Warp Catalogue
The OS/2 Software Source: www.xeu.com/blueware/ The OS/2 Warp Catalogue The Hottest Java The Strongest Platform The OS/2 Warp Catalogue In This Catalogue Anti-virus .......................................... 4 Backup .............................................. 4 It’s Java Time CD-ROMs ........................................ 4 Communications ........................ 6 Just when you thought that OS/2 was on its way back, it is receiving a strong Database Management .......... 9 infusion from Java and the internet. Development Tools ................ 10 As Dr. Michael Cowpland, president and CEO of Corel Disk Compression .................. 14 Corporation put it: “This platform is indeed one of the Games & Entertainment ..... 19 OS/2 Warp: best operating system solutions in which to run The Hottest Corel Office for Java (http://officeforjava.corel.com/), Graphics & Multimedia ........ 20 a suite of applications that is setting the standard for The Operating System ......... 21 Java Around! Java-based office suites, and marks another milestone OS/2 Warp is developing in the evolution of Java as a whole.” Productivity ................................. 21 into a strong and speedy Programmer’s Editors .......... 23 foundation for Java. The OS/2 Warp 4.0 Java implementation was recently This perfect fit is nicely updated with a better Virtual Machine (VM) and a REXX Programming ................ 23 symbolized by “Carmen” speedy Just In Time (JIT) compiler. Also, even older OS/2 the two-sided coffee cup versions, including Warp 3.0, Warp Connect Utilities & Tools ........................ 24 by dutch ceramist Erik-Jan |and Warp Server are now fully able to suppport Java. Books ............................................. 28 Kwakkel on the cover page. But the great work does not end with that: you can Registration Service ............. -
Just Another Perl Hack Neil Bowers1 Canon Research Centre Europe
Weblint: Just Another Perl Hack Neil Bowers1 Canon Research Centre Europe Abstract Weblint is a utility for checking the syntax and style of HTML pages. It was inspired by lint [15], which performs a similar function for C and C++ programmers. Weblint does not aspire to be a strict SGML validator, but to provide helpful comments for humans. The importance of quality assurance for web sites is introduced, and one particular area, validation of HTML, is described in more detail. The bulk of the paper is devoted to weblint: what it is, how it is used, and the design and implementation of the current development version. 1. Introduction The conclusion opens with a summary of the information and opinions given in this paper. A Web sites are becoming an increasingly critical part of selection of the lessons learned over the last four years how many companies do business. For many companies is given, followed by plans for the future, and related web sites are their business. It is therefore critical that ideas. owners of web sites perform regular testing and analysis, to ensure quality of service. 2. Web Site Quality Assurance There are many different checks and analyses which The following are some of the questions you should be you can run on a site. For example, how usable is your asking yourself if you have a web presence. I have site when accessed via a modem? An incomplete list of limited the list to those points which are relevant to similar analyses are given at the start of Section 2. -
A Beginner's Guide to Freebasic
A Beginner’s Guide to FreeBasic Richard D. Clark Ebben Feagan A Clark Productions / HMCsoft Book Copyright (c) Ebben Feagan and Richard Clark. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". The source code was compiled under version .17b of the FreeBasic compiler and tested under Windows 2000 Professional and Ubuntu Linux 6.06. Later compiler versions may require changes to the source code to compile successfully and results may differ under different operating systems. All source code is released under version 2 of the Gnu Public License (http://www.gnu.org/copyleft/gpl.html). The source code is provided AS IS, WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Microsoft Windows®, Visual Basic® and QuickBasic® are registered trademarks and are copyright © Microsoft Corporation. Ubuntu is a registered trademark of Canonical Limited. 2 To all the members of the FreeBasic community, especially the developers. 3 Acknowledgments Writing a book is difficult business, especially a book on programming. It is impossible to know how to do everything in a particular language, and everyone learns something from the programming community. I have learned a multitude of things from the FreeBasic community and I want to send my thanks to all of those who have taken the time to post answers and examples to questions. -
The Different Unix Contexts
The different Unix contexts • User-level • Kernel “top half” - System call, page fault handler, kernel-only process, etc. • Software interrupt • Device interrupt • Timer interrupt (hardclock) • Context switch code Transitions between contexts • User ! top half: syscall, page fault • User/top half ! device/timer interrupt: hardware • Top half ! user/context switch: return • Top half ! context switch: sleep • Context switch ! user/top half Top/bottom half synchronization • Top half kernel procedures can mask interrupts int x = splhigh (); /* ... */ splx (x); • splhigh disables all interrupts, but also splnet, splbio, splsoftnet, . • Masking interrupts in hardware can be expensive - Optimistic implementation – set mask flag on splhigh, check interrupted flag on splx Kernel Synchronization • Need to relinquish CPU when waiting for events - Disk read, network packet arrival, pipe write, signal, etc. • int tsleep(void *ident, int priority, ...); - Switches to another process - ident is arbitrary pointer—e.g., buffer address - priority is priority at which to run when woken up - PCATCH, if ORed into priority, means wake up on signal - Returns 0 if awakened, or ERESTART/EINTR on signal • int wakeup(void *ident); - Awakens all processes sleeping on ident - Restores SPL a time they went to sleep (so fine to sleep at splhigh) Process scheduling • Goal: High throughput - Minimize context switches to avoid wasting CPU, TLB misses, cache misses, even page faults. • Goal: Low latency - People typing at editors want fast response - Network services can be latency-bound, not CPU-bound • BSD time quantum: 1=10 sec (since ∼1980) - Empirically longest tolerable latency - Computers now faster, but job queues also shorter Scheduling algorithms • Round-robin • Priority scheduling • Shortest process next (if you can estimate it) • Fair-Share Schedule (try to be fair at level of users, not processes) Multilevel feeedback queues (BSD) • Every runnable proc. -
Introduction to Unix
Introduction to Unix Rob Funk <[email protected]> University Technology Services Workstation Support http://wks.uts.ohio-state.edu/ University Technology Services Course Objectives • basic background in Unix structure • knowledge of getting started • directory navigation and control • file maintenance and display commands • shells • Unix features • text processing University Technology Services Course Objectives Useful commands • working with files • system resources • printing • vi editor University Technology Services In the Introduction to UNIX document 3 • shell programming • Unix command summary tables • short Unix bibliography (also see web site) We will not, however, be covering these topics in the lecture. Numbers on slides indicate page number in book. University Technology Services History of Unix 7–8 1960s multics project (MIT, GE, AT&T) 1970s AT&T Bell Labs 1970s/80s UC Berkeley 1980s DOS imitated many Unix ideas Commercial Unix fragmentation GNU Project 1990s Linux now Unix is widespread and available from many sources, both free and commercial University Technology Services Unix Systems 7–8 SunOS/Solaris Sun Microsystems Digital Unix (Tru64) Digital/Compaq HP-UX Hewlett Packard Irix SGI UNICOS Cray NetBSD, FreeBSD UC Berkeley / the Net Linux Linus Torvalds / the Net University Technology Services Unix Philosophy • Multiuser / Multitasking • Toolbox approach • Flexibility / Freedom • Conciseness • Everything is a file • File system has places, processes have life • Designed by programmers for programmers University Technology Services -
Backup and Restore Cisco Prime Collaboration Provisioning
Backup and Restore Cisco Prime Collaboration Provisioning This section explains the following: • Perform Backup and Restore, page 1 • Back Up the Single-Machine Provisioning Database, page 2 • Restore the Single-Machine Provisioning Database, page 3 • Schedule Backup Using the Provisioning User Interface, page 5 Perform Backup and Restore Cisco Prime Collaboration Provisioning allows you to backup your data and restore it. You can schedule periodic backups using the Provisioning UI (Schedule Backup Using the Provisioning User Interface, on page 5). There are two backup and restore scenarios; select the set of procedures that matches your scenario: • Backup and restore on a single machine, with the same installation or a new installation. For this scenario, see Schedule Backup Using the Provisioning User Interface, on page 5. Note When backing up files, you should place the files on a different file server. Also, you should burn the backup data onto a CD. Cisco Prime Collaboration Provisioning allows you to back up system data and restore it on a different system in the event of total system failure. To restore the backup from another system, the following prerequisites must be met: • Ensure that the server to which data is restored has the same MAC address as that of the system that was backed up (the IP address and the hostname can be different). • If you are unable to assign the MAC address of the original system (the one that was backed up) to another system, contact the Engineering Team for information on a new license file (for a new MAC address). Cisco Prime Collaboration Provisioning Install and Upgrade Guide, 12.3 1 Backup and Restore Cisco Prime Collaboration Provisioning Back Up the Single-Machine Provisioning Database • The procedure to backup and restore data on a different system is the same as the procedure to backup and restore data on the same system. -
Screenshot Showcase 1
Volume 125 June, 2017 VirtualBox: Going Retro On PCLinuxOS Inkscape Tutorial: Creating Tiled Clones, Part Three An Un-feh-gettable Image Viewer Game Zone: Sunless Sea PCLinuxOS Family Member Spotlight: arjaybe GOG's Gems: Star Trek 25th Anniversary Tip Top Tips: HDMI Sound On Encrypt VirtualBox Virtual Machines PCLinuxOS Recipe Corner PCLinuxOS Magazine And more inside ... Page 1 In This Issue... 3 From The Chief Editor's Desk... Disclaimer 4 Screenshot Showcase 1. All the contents of The PCLinuxOS Magazine are only for general information and/or use. Such contents do not constitute advice 5 An Un-feh-gettable Image Viewer and should not be relied upon in making (or refraining from making) any decision. Any specific advice or replies to queries in any part of the magazine is/are the person opinion of such 8 Screenshot Showcase experts/consultants/persons and are not subscribed to by The PCLinuxOS Magazine. 9 Inkscape Tutorial: Create Tiled Clones, Part Three 2. The information in The PCLinuxOS Magazine is provided on an "AS IS" basis, and all warranties, expressed or implied of any kind, regarding any matter pertaining to any information, advice 11 ms_meme's Nook: Root By Our Side or replies are disclaimed and excluded. 3. The PCLinuxOS Magazine and its associates shall not be liable, 12 PCLinuxOS Recipe Corner: Skillet Chicken With Orzo & Olives at any time, for damages (including, but not limited to, without limitation, damages of any kind) arising in contract, rot or otherwise, from the use of or inability to use the magazine, or any 13 VirtualBox: Going Retro On PCLinuxOS of its contents, or from any action taken (or refrained from being taken) as a result of using the magazine or any such contents or for any failure of performance, error, omission, interruption, 30 Screenshot Showcase deletion, defect, delay in operation or transmission, computer virus, communications line failure, theft or destruction or unauthorized access to, alteration of, or use of information 31 Tip Top Tips: HDMI Sound On contained on the magazine. -
Unix: Beyond the Basics
Unix: Beyond the Basics BaRC Hot Topics – September, 2018 Bioinformatics and Research Computing Whitehead Institute http://barc.wi.mit.edu/hot_topics/ Logging in to our Unix server • Our main server is called tak4 • Request a tak4 account: http://iona.wi.mit.edu/bio/software/unix/bioinfoaccount.php • Logging in from Windows Ø PuTTY for ssh Ø Xming for graphical display [optional] • Logging in from Mac ØAccess the Terminal: Go è Utilities è Terminal ØXQuartz needed for X-windows for newer OS X. 2 Log in using secure shell ssh –Y user@tak4 PuTTY on Windows Terminal on Macs Command prompt user@tak4 ~$ 3 Hot Topics website: http://barc.wi.mit.edu/education/hot_topics/ • Create a directory for the exercises and use it as your working directory $ cd /nfs/BaRC_training $ mkdir john_doe $ cd john_doe • Copy all files into your working directory $ cp -r /nfs/BaRC_training/UnixII/* . • You should have the files below in your working directory: – foo.txt, sample1.txt, exercise.txt, datasets folder – You can check they’re there with the ‘ls’ command 4 Unix Review: Commands Ø command [arg1 arg2 … ] [input1 input2 … ] $ sort -k2,3nr foo.tab -n or -g: -n is recommended, except for scientific notation or start end a leading '+' -r: reverse order $ cut -f1,5 foo.tab $ cut -f1-5 foo.tab -f: select only these fields -f1,5: select 1st and 5th fields -f1-5: select 1st, 2nd, 3rd, 4th, and 5th fields $ wc -l foo.txt How many lines are in this file? 5 Unix Review: Common Mistakes • Case sensitive cd /nfs/Barc_Public vs cd /nfs/BaRC_Public -bash: cd: /nfs/Barc_Public: -
Useful Commands in Linux and Other Tools for Quality Control
Useful commands in Linux and other tools for quality control Ignacio Aguilar INIA Uruguay 05-2018 Unix Basic Commands pwd show working directory ls list files in working directory ll as before but with more information mkdir d make a directory d cd d change to directory d Copy and moving commands To copy file cp /home/user/is . To copy file directory cp –r /home/folder . to move file aa into bb in folder test mv aa ./test/bb To delete rm yy delete the file yy rm –r xx delete the folder xx Redirections & pipe Redirection useful to read/write from file !! aa < bb program aa reads from file bb blupf90 < in aa > bb program aa write in file bb blupf90 < in > log Redirections & pipe “|” similar to redirection but instead to write to a file, passes content as input to other command tee copy standard input to standard output and save in a file echo copy stream to standard output Example: program blupf90 reads name of parameter file and writes output in terminal and in file log echo par.b90 | blupf90 | tee blup.log Other popular commands head file print first 10 lines list file page-by-page tail file print last 10 lines less file list file line-by-line or page-by-page wc –l file count lines grep text file find lines that contains text cat file1 fiel2 concatenate files sort sort file cut cuts specific columns join join lines of two files on specific columns paste paste lines of two file expand replace TAB with spaces uniq retain unique lines on a sorted file head / tail $ head pedigree.txt 1 0 0 2 0 0 3 0 0 4 0 0 5 0 0 6 0 0 7 0 0 8 0 0 9 0 0 10 -
"This Book Was a Joy to Read. It Covered All Sorts of Techniques for Debugging, Including 'Defensive' Paradigms That Will Eliminate Bugs in the First Place
Perl Debugged By Peter Scott, Ed Wright Publisher : Addison Wesley Pub Date : March 01, 2001 ISBN : 0-201-70054-9 Table of • Pages : 288 Contents "This book was a joy to read. It covered all sorts of techniques for debugging, including 'defensive' paradigms that will eliminate bugs in the first place. As coach of the USA Programming Team, I find the most difficult thing to teach is debugging. This is the first text I've even heard of that attacks the problem. It does a fine job. Please encourage these guys to write more." -Rob Kolstad Perl Debugged provides the expertise and solutions developers require for coding better, faster, and more reliably in Perl. Focusing on debugging, the most vexing aspect of programming in Perl, this example-rich reference and how-to guide minimizes development, troubleshooting, and maintenance time resulting in the creation of elegant and error-free Perl code. Designed for the novice to intermediate software developer, Perl Debugged will save the programmer time and frustration in debugging Perl programs. Based on the authors' extensive experience with the language, this book guides developers through the entire programming process, tackling the benefits, plights, and pitfalls of Perl programming. Beginning with a guided tour of the Perl documentation, the book progresses to debugging, testing, and performance issues, and also devotes a chapter to CGI programming in Perl. Throughout the book, the authors espouse defensible paradigms for improving the accuracy and performance of Perl code. In addition, Perl Debugged includes Scott and Wright's "Perls of Wisdom" which summarize key ideas from each of the chapters, and an appendix containing a comprehensive listing of Perl debugger commands. -
A Style Guide
How to Program Racket: a Style Guide Version 6.11 Matthias Felleisen, Matthew Flatt, Robby Findler, Jay McCarthy October 30, 2017 Since 1995 the number of “repository contributors” has grown from a small handful to three dozen and more. This growth implies a lot of learning and the introduction of inconsistencies of programming styles. This document is an attempt leverage the former and to start reducing the latter. Doing so will help us, the developers, and our users, who use the open source code in our repository as an implicit guide to Racket programming. To help manage the growth our code and showcase good Racket style, we need guidelines that shape the contributions to the code base. These guidelines should achieve some level of consistency across the different portions of the code base so that everyone who opens files can easily find their way around. This document spells out the guidelines. They cover a range of topics, from basic work (commit) habits to small syntactic ideas like indentation and naming. Many pieces of the code base don’t live up to the guidelines yet. Here is how we get started. When you start a new file, stick to the guidelines. If you need to edit a file, you will need to spend some time understanding its workings. If doing so takes quite a while due to inconsistencies with the guidelines, please take the time to fix (portions of) the file. After all, if the inconsistencies throw you off for that much time, others are likely to have the same problems. -
UNIX (Solaris/Linux) Quick Reference Card Logging in Directory Commands at the Login: Prompt, Enter Your Username
UNIX (Solaris/Linux) QUICK REFERENCE CARD Logging In Directory Commands At the Login: prompt, enter your username. At the Password: prompt, enter ls Lists files in current directory your system password. Linux is case-sensitive, so enter upper and lower case ls -l Long listing of files letters as required for your username, password and commands. ls -a List all files, including hidden files ls -lat Long listing of all files sorted by last Exiting or Logging Out modification time. ls wcp List all files matching the wildcard Enter logout and press <Enter> or type <Ctrl>-D. pattern Changing your Password ls dn List files in the directory dn tree List files in tree format Type passwd at the command prompt. Type in your old password, then your new cd dn Change current directory to dn password, then re-enter your new password for verification. If the new password cd pub Changes to subdirectory “pub” is verified, your password will be changed. Many systems age passwords; this cd .. Changes to next higher level directory forces users to change their passwords at predetermined intervals. (previous directory) cd / Changes to the root directory Changing your MS Network Password cd Changes to the users home directory cd /usr/xx Changes to the subdirectory “xx” in the Some servers maintain a second password exclusively for use with Microsoft windows directory “usr” networking, allowing you to mount your home directory as a Network Drive. mkdir dn Makes a new directory named dn Type smbpasswd at the command prompt. Type in your old SMB passwword, rmdir dn Removes the directory dn (the then your new password, then re-enter your new password for verification.