Sponsored Content
Full Discussion: Shell Implementation
Top Forums UNIX for Dummies Questions & Answers Shell Implementation Post 7833 by clickonline1 on Tuesday 2nd of October 2001 02:53:12 PM
Old 10-02-2001
Question Shell Implementation

I want to implement my own simple multi tasking shell in Unix which will take care of redirection (<, >, >>) and piping.
I am just unable to get a concrete idea of how exactly I have to start. I have several books...some are..

1. Maurice Bach- Design Of Unix Operating System
2. Richard Stevens- Advanced Programming in Unix

However I find the language too high and complicated in these books.

Can someone please suggest how exactly I should go abt it...(step by step)

What are the things that I need to Learn to Implement this?
(anything and everything)


Smilie Smilie
 

10 More Discussions You Might Find Interesting

1. Programming

Shell Implementation not working correctly

//save in/out int tmpin = dup(0); int tmpout = dup(1); //set initial input int fdin; if(_inputFile) { fdin = open(_inputFile, O_RDONLY | O_CREAT, S_IREAD | S_IWRITE); } else { //use default input fdin = dup(tmpin); } int ret; int fdout; for(int i = 0; i... (14 Replies)
Discussion started by: AirBronto
14 Replies

2. UNIX for Advanced & Expert Users

Implementation of ls - i command

It is possible for me to obtain the Inode of the path name using ls -i <pathname> command Can anyone tell me how its implemented... (3 Replies)
Discussion started by: ganapathy.psgit
3 Replies

3. Shell Programming and Scripting

Need help on AWK implementation

Hi, I am accepting a string from user. compare this output with the awk output as below... echo "\n\n\tDay : \c" read day awk '{ if($day == $2) { if ($mon == $1) { print "Yes" }}}' syslog.txt I am getting the follwoing error awk: Field $() is not correct. The input line... (5 Replies)
Discussion started by: EmbedUX
5 Replies

4. Programming

Malloc implementation in C

Hey Guys I am trying to implement the malloc function for my OS class and I am having a little trouble with it. I would be really grateful if I could get some hints on this problem. So I am using a doubly-linked list as my data structure and I have to allocate memory for it (duh...). The... (1 Reply)
Discussion started by: Gambit_b
1 Replies

5. UNIX for Advanced & Expert Users

Malloc Implementation in C

Hey Guys Some of my friends have got together and we are trying to write a basic kernel similar to Linux. I am trying to implement the malloc function in C and I am using a doubly linked list as the primary data structure. I need to allocate memory for this link list (duh...) and I don't feel... (2 Replies)
Discussion started by: rbansal2
2 Replies

6. Linux

CAPWAP implementation

Hi I'm trying to implement CAPWAP protocol for my application.i'm able to configure my server side but i'm getting error at client(WTP) side as IOCTL error.while running the command #./WTP /mnt/cf/capwap/ : wlan2 Starting WTP... # WTP Loads... (0 Replies)
Discussion started by: ran789
0 Replies

7. UNIX for Dummies Questions & Answers

Lseek implementation

Hi everybody, i've been googling for ages now and gotten kinda desperate... The question, however, might be rather trivial for the experts: What is it exactly, i.e. physically, the POSIX function (for a file) "lseek" does? Does it trigger some kind of synchronization on disk? Is it just for the... (4 Replies)
Discussion started by: Humudituu
4 Replies

8. Linux

Shell implementation - Command not found

Hi, I am trying to execute a program with pipes to run a few basic commands by forking children. When I try to run commands in the child process without pipe, I am unable to run the command as execv fails. However for commands that are given with pipes execute successfully. for example:... (1 Reply)
Discussion started by: mmurali2
1 Replies

9. UNIX for Advanced & Expert Users

Ipsec implementation

How can i implement Ipsec between two machines in linux_ ubuntu? any link?? suggestion?? (0 Replies)
Discussion started by: elinaz
0 Replies

10. Programming

C: CSV implementation

I have this code from a programming book: #include <stdio.h> #include <string.h> char buf; /* input line buffer */ char* field; /* fields */ char* unquote( char* ); /* csvgetline: read and parse line, return field count */ /* sample input:... (3 Replies)
Discussion started by: totoro125
3 Replies
books(3)							       Coin								  books(3)

NAME
books - Books Related to Open Inventor / Coin Here is a list of some of the better books for people that invested in software development with Open Inventor. If you have suggestions for additional books that ought to go on this list, please feel free to tell us about it. The Inventor Mentor (subtitle 'Programming Object-Oriented 3D Graphics with Open Inventor') This is an excellently written, detailed, tutorial-style introductory book for Open Inventor that takes you through all the fundamental design principles applied in the Open Inventor API, richly illustrated and with numerous, well documented code examples. The Inventor Mentor is getting a bit old, but do not let that put you off. It is as valid today as it was the day it was written, and we heartily recommend this book for anyone learning to use Open Inventor. ISBN 0-201-62495-8. You might also be able to find this book as a pdf file online, but we recommend having it in print. The Inventor Toolmaker This book explains how Open Inventor was designed for being extended by the users, and walks you through how to develop your own components that work with all aspects of Coin. ISBN 0-201-62493-1. You might also be able to find this book as a pdf file online, but we recommend having it in print. The Annotated VRML2.0 Reference Manual This book covers the VRML97 (aka VRML 2.0) standard, which Coin has implemented with its Inventor/VRMLnodes/* classes, which is an extension made beyond the Open Inventor V2.1 API. The VRML97 format has some significant differences from the Inventor and VRML1 formats, so it is a useful book if you want to use that part of Coin. ISBN 0-201-41974-2. You will find the specification documents for VRML97 online at http://www.web3d.org/. The Open GL Programming Manual This is the bible when it comes to OpenGL programming and is relevant for Open Inventor extenders that develop new nodes that implement or affect Open Inventor OpenGL rendering. There are many editions of this book since it is updated whenever new versions of OpenGL are standardized and comes out, so check that you have identified the latest edition if you order one. The Open Inventor C++ Reference Manual Although this book is directly relevant for Open Inventor, it does only cover the Open Inventor 2.1 API. This information is more or less also covered in the online doxygen doc for Coin, where you have it hyperlinked, and can also be generated offline from the Coin sources to have locally, so we do not think this book is very useful to have in print. We mention it anyway since it is an official documentation book for Open Inventor. ISBN 0-201-62491-5. Version 3.1.3 Wed May 23 2012 books(3)
All times are GMT -4. The time now is 08:58 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy