Claudio Ochoa, Phd

Total Page:16

File Type:pdf, Size:1020Kb

Claudio Ochoa, Phd San Martin 727, Email: . 5738 Justo Daract (SL) Web: claudioochoa.com.ar Argentina Phone: +54 9 2657-562877 Claudio Ochoa, PhD Senior Software Engineer with experience in .NET environment, Object Oriented paradigms, Real Profile Time OS, low-level programming, parallel programming, declarative languages. Project Leader, having experience applying Agile Methodologies for Software Development. Oracle DBA for 2 years, having experience with several other RDBMS. Place of Birth: Merlo, San Luis, Argentina Personal Languages: Spanish (native speaker), English (fluid), Portuguese (intermediate) Information Universidad Politécnica de Madrid Madrid, Spain Education PhD in Computer Science, 2007 . Summa Cum Laude Universidad Politécnica de Valencia Valencia, Spain Advanced Studies Diploma, 2005 . GPA 4.00 University of Illinois at Urbana Champaign Illinois, US Master of Computer Science, 2000 . GPA 4.00 Universidad Nacional de San Luis San Luis, Argentina Bachelor of Science, Computer Science, 1998 . Minor “Parallel Genetic Algorithms” . GPA 3.61 . Honors Diploma Universidad Politecnica de Valencia, Spain. 2003-2004 Awards . RA scholarship: Multiparadigm Declarative Programming. Fulbright Scholarship, 1998-2000 . Selected to represent Argentina in Fulbright Program at the UIUC (US). University of Illinois at Urbana Champaign, 2000 . RA scholarship: design of Java animation with educational purposes. Universidad de Cadiz, Spain, 1998 . Inter-Universities Cooperation Program(PCI) fellowship: Design of Genetic Algorithms in MatLab. Universidad de San Luis, Argentina, 1995-1998 . RA scholarship: Parallel Genetic Algorithms Intel Argentina Cordoba, Argentina Experience Senior Software Engineer Innovator, since 06/07 . Member of the Argentina Software Pathfinding and Innovation team. Universidad Nacional de San Luis San Luis, Argentina Professor - Research Assistant, since 1/03 . Member of the Software Engineering Group, researching on Agile meths for Sw Development . Professor of Agile Methodologies course, part of the Master in Software Engineering program. Universidad Politecnica de Madrid Madrid, Spain Research Assistant, Systems Admin, 10/04 - 05/07 . Member of the CLIP research group, developing an open source development environment for Ciao, a multiparadigm programming language. Universidad Politecnica de Valencia Valencia, Spain Research Assistant, 1/04 – 10/04 . Member of the MIST / ELP / GPLIS research groups, focusing on theory of programming languages NEC Argentina San Luis, Argentina Senior Software Engineer – Project Leader, 2/03 - 1/04 . Architect Leader of team developing the province’s police integrated system, as part of the province’s information highway, using Enterprise Architect, UML, RUP, .NET Environment. Project Leader of team developing a Job Administration system and a Job Search Engine for the 1 / 3 San Martin 727, Email: . 5738 Justo Daract (SL) Web: claudioochoa.com.ar Argentina Phone: +54 9 2657-562877 Claudio Ochoa, PhD portal of the government of San Luis, as part of the province’s information highway, using MS Project, Scrum@RUP methodology, .NET, C#, ASP.NET, NUnit, NDoc, Web Services, MBI, XML/XSL/HTML, JavaScript, IIS web server, SQL Server 2000 databases. Development of a common platform for the information highway of the province of San Luis, using .NET, C#, ASP.NET, Web Services, MBI, JavaScript, HTML languages, IIS web server, SQL Server 2000 databases. Motorola Argentina, Global Software Group Cordoba, Argentina Software Engineer, 10/01 - 2/03 . Development of website intranet, using ASP and COM technologies, VisualBasic, VBScript, JavaScript, HTML languages, IIS webserver, SQL Server database. Testing, maintenance and development of Product Support Tool for P2K phones, technologies CDMA/TDMA/GSM using Visual C++. Joint work with GSG at Montreal Canada, from 03/02-07/02. Motorola Inc Arlington Heights IL, US Software Engineer, 09/00- 09/01 . Development of networking applications and MCP750 drivers in real-time OS in the SDU transport team, transcoder group of CDMA division, working mostly in C and C++. University of Illinois at Urbana-Champaign Urbana IL, US Research Assistant, 6/00 - 8/00 . Development of educational animations in Java. Siemens-Itron Business Services San Luis, Argentina Software Engineer - Database Administrator, 10/97 - 6/99 . Development of a wage system and a tax collection system for the government of San Luis, Argentina, working with Pro-C, and Oracle tools. Administration of Database using Oracle 7.3. Universidad Nacional de San Luis San Luis, Argentina Teaching Assistant - Research Assistant: 8/95 - 6/99 . Research of artificial intelligence, parallel programming in C language on Sun platforms. TA in Introduction to Programming, Advanced Programming, & Programming Languages courses. Training: Project Management, Scrum, Extreme Programming, Agile Methodologies, Object Skills Oriented Paradigm, Design Patterns, .NET technology, Microsoft Business Integrator (MBI), Compilers, Operating Systems, Drivers, Unix network programming, Processor Architecture, Intel 8086 assembler, Queues, Critical Sections, Semaphores, CDMA, SuperCell Digital Cellular Technology, TTCN-3 Standard-based Test Environments for Telecom and Datacom, Artificial Intelligence, Genetic Algorithms (GAs), Parallel GAs, Neural networks, Data Mining, Pthreads, Concurrent and Parallel programming Asynchronous Transfer Mode (ATM), Developing Quality Software, XDP Inspection, Software Inspections, Software System Testing, 5nines: System Availability Foundations, Structured Methods Technology: .NET, Web Services, CDMA, TDMA, GSM, OLE, COM, DCOM, ASP, JSP, Sockets, TTCN-3. System Management: Oracle DBA, SQL server Administration, Linux, Solaris and WinNT Administration OS: vxWorks, Solaris, Unix, Windows, Palm OS, DOS, Linux (most flavors) Development Environments: Visual Studio .NET, Tornado, CodeWarrior, Jbuilder, Forte, MS Developer Studio, MatLab, MS FrontPage, PowerBuilder, Ciao Languages: C#, C, Java, C++, ProC, SQL, PL/SQL, Visual Basic, Pascal, Lisp, Prolog, Perl, Smalltalk, Squeak, Shell script, JavaScript, VBScript, VBA, MatLab, Visual C, UML, Haskell, Curry, Ciao. Equipment: Emulators, Oscilloscopes, Multimeter, LAN Meter Editors: CodeWright, Vi, Emacs, UltraEdit. Presentation: XML, HTML, Java applets, JSP, ASP, GUI/OLE Products/ERP: MS Project, Oracle Reports Designer, Oracle Forms Designer, Oracle Enterprise Manager, SQL Loader, SQL Plus, ERWin, CASE tools, Rational Clearcase, FrameMaker, Latex, MS Access, MS Office, Rational Rose, ClearDDTS Transactional: Oracle, Sybase, MS SQL server, MySQL, COM, DCOM, 3-tier, IIS, Apache, MTS Network: TCP, UDP, SCTP, IP, sockets, ATM Process: Motorola GSG-ITP, Software Production Process, Project Management Software Engineering Most Relevant Publications Agilizando el Proceso de Producción de Software en un Entorno CMM de Nivel 5 Maller P., Ochoa C., Silva J. IEEE America Latina Magazine, Volume 3, Issue I, 03/2005. Lightening the Software Production Process in a CMM Level 5 Framework Maller P., Ochoa C., Silva J. 2 / 3 San Martin 727, Email: . 5738 Justo Daract (SL) Web: claudioochoa.com.ar Argentina Phone: +54 9 2657-562877 Claudio Ochoa, PhD . JISBD 04, Malaga, Spain (11/2004) – ISBN 84-688-8983-0 Guidelines for Applying XP@Scrum in a CMM Level 5 Organization Ochoa C., Maller P., Schwaber K. Agile Times Newsletter, issue 2 (04/2003) Programming Languages – Program Transformations Poly-Controlled Partial Evaluation in Practice Ochoa C., Puebla G. ACM SIGPLAN 2007 Workshop on Partial Evaluation and Program Manipulation (PEPM '07), Nice, France, 01/2007 Poly-Controlled Partial Evaluation Puebla G., Ochoa C. 8th ACM-SIGPLAN International Symposium on Principles and Practice of Declarative Programming (PPDP'06), Venice, Italy, 07/2006 Removing Superfluous Versions in Polyvariant Specialization of Prolog Programs Ochoa C., Puebla G., Hermenegildo M. 14th International Symposium on Logic-based Program Synthesis and Transformation (LOPSTR'05), London UK, 09/2005, Springer-Verlag. Lightweight Program Specialization via Dynamic Slicing Ochoa C., Silva J., Vidal G. ACM SIGPLAN International Workshop on Curry and Functional Logic Programming (WCFLP 2005), Tallinn, Estonia, 09/2005. Slicing based on Redex Trails Ochoa C., Silva J., Vidal G. ACM SIGPLAN Symposium on Partial Evaluation and Program Manipulation PEPM 04, Verona, Italy, 08/2004. Towards CNC Programming Using Haskell Arroyo G, Ochoa C., Silva J., Vidal G. IBERAMIA 04, Puebla, Mexico (11/2004) Program Specialization Based on Dynamic Slicing Ochoa C., Silva J., Vidal G. Workshop on Software Analysis and Development for Pervasive Systems SONDA 04, Verona, Italy (08/2004) Artificial Intelligence Alternative Strategies for Asynchronous Migration-controlled Schemes in Parallel Genetic Algorithms Ochoa C., Gallard R. JCS&T. Journal of Computer Science & Technology N 1, http://journal.info.unlp.edu.ar/journal/, (03/1999) A Comparison of Strategies to Control Migration in Parallel Genetic Algorithms Ochoa C., Gallard R. IASTED Computer Systems and Applications, CSA´98, Irbid, Jordan, (03/1998). An overview of a Symbiotic Coalition: Evolutionary Algorithms and Distributed Systems Leguizamon G., Esquivel S., Ochoa C., Gallard R. International Conference on Intelligent Information Systems, IIS´97, Las Bahamas (12/1997). 2nd Analysis, Slicing and Transformation Network workshop, talk about Dynamic Slicing based on Invited Talks Redex Trails, University of London, June 2005. Reviewer of “A Practical Guide to Enterprise Architecture”, James McGovern, Scott Ambler et al., Book Reviews Prentice Hall, ISBN 0-13-141275-2, 2003. Program Committee Member of II Argentine Symposium on Information Systems ASIS 2005, 08/2005 - Conferences Rosario, Argentina Available upon request References 3 / 3.
Recommended publications
  • Bash Shell Scripts
    Bash Shell Scripts Writing Bash shell scripts Bash shell scripts are text files Text files most efficiently built with programming editors (emacs or vi) File must be executable and in search path chmod 700 my_script PATH environment variable may not include .! An example shell script: #!/bin/bash #My first script echo "Hello World!" Bash Shell Scripts Writing Bash shell scripts Compile a Verilog file with vlog #!/bin/bash if [ ! d work ] ; then echo work does not exist, making it vlib work fi if [ ! s adder.v ] ; then vlog adder.v fi work directory must exist before compilation Get scripts via wget, eg: wget http://web.engr.oregonstate.edu/~traylor/ece474/script --- Bash Shell Scripts Writing Bash shell scripts File attribute checking #!/bin/bash if [ ! s junk_dir ] ; then mkdir junk_dir fi Spaces around brackets are needed! File attribute checking d exists and is a directory e, a file exists f exists and is a regular file s file exists and is not empty --- Bash Shell Scripts Writing Bash shell scripts Compile Verilog then run a simultion #!/bin/bash if [ ! -d "work" ] ; then vlib work fi if [ -s "adder.v" ] ; then vlog adder.v #runs simulation with a do file and no GUI vsim adder -do do.do quiet c else echo verilog file missing fi --- Bash Shell Scripts Writing Bash shell scripts vsim command and arguments vsim entity_name do dofile.do quiet -c -quiet (do not report loading file messages) -c (console mode, no GUI) -do (run vsim from a TCL do file) +nowarnTFMPC (don’t warn about mismatched ports, scary) +nowarnTSCALE (don’t warn about timing mismatches) Try vsim help for command line arguements --- Bash Shell Scripts Writing Bash Shell Scripts (TCL Script) In another text file, we create a TCL script with commands for the simulator.
    [Show full text]
  • Tcl/Tk for Xspecta Michael Flynn Tcl: Tcl (Ie Tool Command Language)
    Tcl/Tk for XSPECTa Michael Flynn Tcl: Tcl (i.e. Tool Command Language) is an open source scripting language similar to other modern script languages such as Perl or Python. It is substantially more powerful than UNIX/LINUX/POSIX shell script languages such as the Bourne Shell (sh), the C Shell (csh), or the Korn Shell (https://en.wikipedia.org/wiki/Shell_script). Tcl and its associated graphical user interface toolkit, Tk, were developed by John Ousterhout of the University of California. Ousterhout's group subsequently continued development of Tcl/Tk while at Sun Microsystems and later at Scriptics. Continued development is now done by an open source project team. The language has been popular for developing graphic applications and is available as public domain software for almost all computer systems (Linux, Windows and MacOS). Installation: Tcl/Tk software can be found at: http://www.activestate.com/activeTcl Binary Windows installers are available from this site for both 32 and 64 bit systems as a Free Community Edition. The lab modules were last validated with Version 8.6.4.1 but more recent versions should not be problematic. Unless Tcl has already been installed on the system being used, download and install the software from ActiveState. The installer should be run with administrative privileges. On Windows7, you should right click and 'run as administrator'. Installing with elevated privilege will allow the registry changes that map Tcl extensions and will configure the un-installer database, making later removal of ActiveTcl easier. The ActiveState default installation directory is C:/Tcl. During the installation, the installer will ask if you want this changed.
    [Show full text]
  • Shell Script Getopts Example
    Shell Script Getopts Example Gail is constrainedly cryoscopic after delegable Hilbert sag his parcloses illuminatingly. Gonzales often tootle irresistibly when tripersonal Giordano discomposed dissonantly and buffer her Barbarossa. Robert misdraws rompishly. Find that getopts script example we use later will contain whitespace separation with command Instantly share code, notes, and snippets. OPTARG is set to the period character found. They cease in many cases unneeded and brief fact that cartoon always press them its just like matter of personal coding style. File or directory or found. Operator precedence is used when there within five is more arguments. Typically, shell scripts use getopts to parse arguments passed to them. There did many ways to against your remedy environment. Nothing gets printed when no command line options are provided. The return status is zero unless an outcome is encountered while determining the name avid the he directory within an invalid option is supplied. The exit code will be success failure. Log in charge use details from one require these accounts. How does log lumber and cpu usage by an application? Now consider running it bore an unsupported option. No need only pass the positional parameters through to borrow external program. How can I check took a directory exists in a candy shell script? What extent its purpose? When optional, the fashion can buckle on led off additional functionality, as ugly a boolean option. In those cases, it contains a pointer to that parameter. How environment check ride a variable is set to Bash? Connect and deploy knowledge write a single location that is structured and fatigue to search.
    [Show full text]
  • Lecture 17 the Shell and Shell Scripting Simple Shell Scripts
    Lecture 17 The Shell and Shell Scripting In this lecture • The UNIX shell • Simple Shell Scripts • Shell variables • File System commands, IO commands, IO redirection • Command Line Arguments • Evaluating Expr in Shell • Predicates, operators for testing strings, ints and files • If-then-else in Shell • The for, while and do loop in Shell • Writing Shell scripts • Exercises In this course, we need to be familiar with the "UNIX shell". We use it, whether bash, csh, tcsh, zsh, or other variants, to start and stop processes, control the terminal, and to otherwise interact with the system. Many of you have heard of, or made use of "shell scripting", that is the process of providing instructions to shell in a simple, interpreted programming language . To see what shell we are working on, first SSH into unix.andrew.cmu.edu and type echo $SHELL ---- to see the working shell in SSH We will be writing our shell scripts for this particular shell (csh). The shell scripting language does not fit the classic definition of a useful language. It does not have many of the features such as portability, facilities for resource intensive tasks such as recursion or hashing or sorting. It does not have data structures like arrays and hash tables. It does not have facilities for direct access to hardware or good security features. But in many other ways the language of the shell is very powerful -- it has functions, conditionals, loops. It does not support strong data typing -- it is completely untyped (everything is a string). But, the real power of shell program doesn't come from the language itself, but from the diverse library that it can call upon -- any program.
    [Show full text]
  • Introduction to Shell Programming Using Bash Part I
    Introduction to shell programming using bash Part I Deniz Savas and Michael Griffiths 2005-2011 Corporate Information and Computing Services The University of Sheffield Email [email protected] [email protected] Presentation Outline • Introduction • Why use shell programs • Basics of shell programming • Using variables and parameters • User Input during shell script execution • Arithmetical operations on shell variables • Aliases • Debugging shell scripts • References Introduction • What is ‘shell’ ? • Why write shell programs? • Types of shell What is ‘shell’ ? • Provides an Interface to the UNIX Operating System • It is a command interpreter – Built on top of the kernel – Enables users to run services provided by the UNIX OS • In its simplest form a series of commands in a file is a shell program that saves having to retype commands to perform common tasks. • Shell provides a secure interface between the user and the ‘kernel’ of the operating system. Why write shell programs? • Run tasks customised for different systems. Variety of environment variables such as the operating system version and type can be detected within a script and necessary action taken to enable correct operation of a program. • Create the primary user interface for a variety of programming tasks. For example- to start up a package with a selection of options. • Write programs for controlling the routinely performed jobs run on a system. For example- to take backups when the system is idle. • Write job scripts for submission to a job-scheduler such as the sun- grid-engine. For example- to run your own programs in batch mode. Types of Unix shells • sh Bourne Shell (Original Shell) (Steven Bourne of AT&T) • csh C-Shell (C-like Syntax)(Bill Joy of Univ.
    [Show full text]
  • Simple Shell Scripting for Scientists
    Simple Shell Scripting for Scientists Day Three Julian King Bruce Beckles University of Cambridge Computing Service 1 Introduction • Who: ! Julian King, Unix Support, UCS ! Bruce Beckles, e-Science Specialist, UCS • What: ! Simple Shell Scripting for Scientists course, Day Three ! Part of the Scientific Computing series of courses • Contact (questions, etc): ! [email protected] • Health & Safety, etc: ! Fire exits • Please switch off mobile phones! [email protected] Simple Shell Scripting for Scientists: Day Three 2 As this course is part of the Scientific Computing series of courses run by the Computing Service, all the examples that we use will be more relevant to scientific computing than to system administration, etc. This does not mean that people who wish to learn shell scripting for system administration and other such tasks will get nothing from this course, as the techniques and underlying knowledge taught are applicable to shell scripts written for almost any purpose. However, such individuals should be aware that this course was not designed with them in mind. 2 What we don’t cover • Different types of shell: ! We are using the Bourne-Again SHell (bash). • Differences between versions of bash • Very advanced shell scripting – try one of these courses instead: ! “Python: Introduction for Absolute Beginners” ! “Python: Introduction for Programmers” [email protected] Simple Shell Scripting for Scientists: Day Three 3 bash is probably the most common shell on modern Unix/Linux systems – in fact, on most modern Linux distributions it will be the default shell (the shell users get if they don’t specify a different one).
    [Show full text]
  • Natural Shell: an Assistant for End-User Scripting
    International Journal of People-Oriented Programming Volume 5 • Issue 1 • January-June 2016 Natural Shell: An Assistant for End-User Scripting Xiao Liu, College of Information Sciences and Technology, Pennsylvania State University, University Park, PA, USA Yufei Jiang, College of Information Sciences and Technology, Pennsylvania State University, University Park, PA, USA Lawrence Wu, College of Information Sciences and Technology, Pennsylvania State University, University Park, PA, USA Dinghao Wu, College of Information Sciences and Technology, Pennsylvania State University, University Park, PA, USA ABSTRACT Scripting is a widely-used way to automate the execution of tasks. Despite the popularity of scripting, it remains difficult to use for both beginners and experts: because of the cryptic commands for the first group, and incompatible syntaxes across different systems, for the latter group. The authors introduce Natural Shell, an assistant for enabling end-users to generate commands and scripts for various purposes. Natural Shell automatically synthesizes scripts for different shell systems based on natural language descriptions. By interacting with Natural Shell, new users can learn the basics of scripting languages without the obstacles from the incomprehensible syntaxes. On the other hand, the authors’ tool frees more advanced users from manuals when they switch shell systems. The authors have developed a prototype system and demonstrate its effectiveness with a benchmark of 50 examples of popular shell commands collected from online forums. In addition, the authors analyzed the usage of Natural Shell in a lab study that involves 10 participants with different scripting skill levels. Natural Shell effectively assists the users to generate commands in assigned syntaxes and greatly streamlines their learning and using experience.
    [Show full text]
  • BASH Programming − Introduction HOW−TO BASH Programming − Introduction HOW−TO
    BASH Programming − Introduction HOW−TO BASH Programming − Introduction HOW−TO Table of Contents BASH Programming − Introduction HOW−TO.............................................................................................1 by Mike G mikkey at dynamo.com.ar.....................................................................................................1 1.Introduction...........................................................................................................................................1 2.Very simple Scripts...............................................................................................................................1 3.All about redirection.............................................................................................................................1 4.Pipes......................................................................................................................................................1 5.Variables...............................................................................................................................................2 6.Conditionals..........................................................................................................................................2 7.Loops for, while and until.....................................................................................................................2 8.Functions...............................................................................................................................................2
    [Show full text]
  • A Shell Script for Preparing Your Trials with a Standard Set-Up
    PhUSE US Connect 2019 Paper CT04 Quick Start Your Trials – A Shell Script for Preparing Your Trials with a Standard Set-up Edita Karosiene, Novo Nordisk A/S, Søborg, Denmark Johan Ejstrud, Novo Nordisk A/S, Aalborg, Denmark ABSTRACT In this paper we present a shell script which can set-up your trial in a few seconds. The script is using a template directory where the files needed to start a trial are placed. It can automatically find all the files in the template directory and copy them to the corresponding trial directory. If the trial ID is used anywhere in the file or directory name or within the file content, it will be replaced with an actual trial ID. In addition to this, the script automatically recognizes the updates made in the template directory so files can be easily moved, added or removed within the template with no need to update the script. The shell script can run on UNIX® or Linux® servers and can easily be adjusted for any other tasks as well. INTRODUCTION It is often the case that clinical trials or projects will have a similar technical set-up within the same company. That includes having some dedicated locations where all trial directories are placed and having a naming convention to name them. Moreover, there should be an overlap between directory structure and files that are used for many trials. This suggests an idea to have a trial template directory ready which is utilized as an example for every new trial. Having such template is already a very good idea, however it is very important to use it efficiently.
    [Show full text]
  • A Quickie Intro to UNIX, Linux, Macosx the Filesystem + Some Tools
    Introduction to UNIX Notes . Alistair Blachford A Quickie Intro to UNIX, Linux, MacOSX The Filesystem + some tools For Snooping Around 1) pwd • print the working directory 2) ls • list names of the files and subdirectories in the current directory ? ls -F list directory contents, with terminating marks to indicate subdirectories and executable files. ? ls -a list all files, even those begining with a ‘.’ ? ls -l list files in ‘long’ form giving a lot of information about each one 3) cd dirname • change the current working directory to dirname ? cd data.d change whatever the current working directory is to the directory data.d. This example assumes data.d is a subdirectory (child) of the current directory. ? cd .. change working directory to the one immediately above (parent). ? cd cd with no arguments means go to the default place — your home directory 4) who • print the list of users currently logged onto this computer 5) date • print the date and time 6) cat filename... • “copy all text” of filename(s) to the screen. When more than one filename is given, the files are concatenated end-to-end. 7) more filename • will “cat” a file to the screen, one screenfull at a time. Hit <return> to advance by only one line, <space bar> to advance by a screenfull, and <q> to quit. 8) file filename • this will make a good guess at what is contained in the file filename. Some possible responses are: binary data, ASCII text, C program text, shell commands text. 1 Introduction to UNIX Notes . Alistair Blachford For Shuffling Files 9) rm file.
    [Show full text]
  • Shell Scripting
    Shell Scripting Alexander B. Pacheco LTS Research Computing Outline 1 Introduction Types of Shell Variables File Permissions Input and Output 2 Shell Scripting Getting Started with Writing Simple Scripts Arithmetic Operations Flow Control Arrays Command Line Arguments Functions 3 Unix Utilities grep sed 4 awk programming 5 Wrap Up 2 / 76 Introduction Introduction What is a SHELL The command line interface is the primary interface to Linux/Unix operating systems. Shells are how command-line interfaces are implemented in Linux/Unix. Each shell has varying capabilities and features and the user should choose the shell that best suits their needs. The shell is simply an application running on top of the kernel and provides a powerful interface to the system. her Softwa Ot re Shell Kernel rdwa a r e H 4 / 76 Types of Shell sh : Bourne Shell Developed by Stephen Bourne at AT&T Bell Labs csh : C Shell Developed by Bill Joy at University of California, Berkeley ksh : Korn Shell Developed by David Korn at AT&T Bell Labs backward-compatible with the Bourne shell and includes many features of the C shell bash : Bourne Again Shell Developed by Brian Fox for the GNU Project as a free software replacement for the Bourne shell (sh). Default Shell on Linux and Mac OSX The name is also descriptive of what it did, bashing together the features of sh, csh and ksh tcsh : TENEX C Shell Developed by Ken Greer at Carnegie Mellon University It is essentially the C shell with programmable command line completion, command-line editing, and a few other features.
    [Show full text]
  • Shell Scripting and System Variables HORT 59000 Lecture 5 Instructor: Kranthi Varala Text Editors
    Shell scripting and system variables HORT 59000 Lecture 5 Instructor: Kranthi Varala Text editors • Programs built to assist creation and manipulation of text files, typically scripts. • nano : easy-to-learn, supports syntax highlighting, lacks GUI. • Emacs : provides basic editing functions but also extendible to add functionality. Supports GUI, extensions provide a wide range of functions. • vi/vim : extensive editing functions and relatively limited extensibility, command and insert modes distinct, steep learning curve, but very rewarding experience. Text manipulations • Tabular data files can be manipulated at a column- level. 1. Cut: Divide file & extract columns. 2. Paste: Combine multiple columns into a single table/file. • Sort: Sort lines in a file based on contents of one or more columns. • Regular expressions : defining patterns in text. Special characters and quantifiers allow search and replacement of simple-to-complex matches. • grep and awk use the power of regular expressions to make text processing very easy. Command-line operations • All commands so far are run one at a time. • Redirection and pipes allow combining a few commands together into a single pipeline. • Lacks logical complexity, such as ability to make decisions based on input / values in file. • Certain repetitive tasks are tedious to user. • All commands are being sent to and interpreted by the ‘shell’ Client/Server architecture User1 User2 Server (UNIX/ Web/ Database etc..) User3 User4 Terminology • Terminal: Device or Program used to establish a connection to the UNIX server • Shell: Program that runs on the server and interprets the commands from the terminal. • Command line: The text-interface you use to interact with the shell.
    [Show full text]