'File descriptor' presentation slideshows

CS711 Typed Assembly Language

CS711 Typed Assembly Language. Greg Morrisett Cornell University. The Big Question?.

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Week Three Agenda

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bash, part 3

bash, part 3. Chris GauthierDickey. More redirection. As you know, by default we have 3 standard streams: input, output, error How do we redirect more than one stream? This requires an introduction to file descriptors. File Descriptors.

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CSNB334 Advanced Operating Systems 4. Concurrency : Mutual Exclusion and Synchronization

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File Management

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AFS

AFS. Made By Andrew Carnegie & Andrew Mellon Carnegie Mellon University Presented By Christopher Tran & Binh Nguyen. AFS: Andrew File System. Abstraction of DFS from users Accessing a file is similar to using a local file Scalability with region distribution

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CS252: Systems Programming

CS252: Systems Programming. Ninghui Li Based on slides by Prof. Gustavo Rodriguez-Rivera Topic 17: Project 5. Sockets and Ports. A port defines an end-point (application) in the machine itself There are well-known ports: HTTP Port 80 SSH Port 22 FTP Port 21

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System Programming

System Programming. Chapter 3 File I/O. Announcement. The first exercise is due today. We will NOT accept late assignment this time. Submission site is up. Sign up your account, activate your account, and submit your exercise on-line if possible.

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LINUX System Process (additional slides)

LINUX System Process (additional slides). System Calls Dealing with Memory Management. System Calls Dealing with Synchronization. Miscellaneous. fork. exec. brk. exit. wait. signal. kill. setpgrp. setuid. dupreg attachreg. detachreg allocreg attachreg growreg loadreg mapreg.

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Lecture 3

Lecture 3. Introduction to Unix Systems Programming: Unix File I/O System Calls. Unix File I/O. Unix System Calls. System calls are low level functions the operating system makes available to applications via a defined API (Application Programming Interface)

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Introduction to Concurrency

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Lecture 2

Lecture 2. The Structure of Directories Filename Metacharacters Handling Special Characters Input / Output Redirection Building Complex Commands. The Structure of Directories. A file cc.txt in directory bb under directory aa can be represented as / aa /bb/cc.txt

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Ashutosh Shukla Lecture 3 Network Programming

Ashutosh Shukla Lecture 3 Network Programming. CS 640: Computer Networking. Topics. Client-server model Sockets interface Socket primitives Example code for echoclient and echoserver Debugging With GDB Programming Assignment 1 (MNS). Client/sever model.

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Standard I/O Library Implementation

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Recitation 11: I/O Problems

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The UNIX Shell

The UNIX Shell. The Shell. Program that constantly runs at terminal after a user has logged in. Prompts the user and waits for user input. Interprets command line and makes arrangements for its execution. Generally waits for command to complete execution (locking the terminal).

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File I/O in C

File I/O in C. Files in C. In C, each file is simply a sequential stream of bytes. C imposes no structure on a file. A file must first be opened properly before it can be accessed for reading or writing. When a file is opened, a stream is associated with the file.

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File I/O in C

File I/O in C. Lecture 7. Files in C. In C, each file is simply a sequential stream of bytes. C imposes no structure on a file. A file must first be opened properly before it can be accessed for reading or writing. When a file is opened, a stream is associated with the file.

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Stdin, stdout and stderr

Stdin, stdout and stderr. File Device File Descriptor stdin 0 stdout 1 stderr 2. < - Redirecting Inputs. Any redirection that reads its input from stdin can have its input redirected to come from another file. Example $ cat remind

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