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UNIX environment advanced programming UNIX Network Programming 12 which of the three books should I read first? Network Programming and web programming, pythontornado source code learning

I have been engaged in pythonWeb development for a year. Now I am confused. I mainly work on curd, that is, how to obtain data, and then present it to the front-end page. The framework uses django, optimization means adding memecache. Pay attention to this when querying the database. Currently, there are a lot of tangled issues: 1: the programming of process threads, how to use it in practice 2: network programming problems, the design and implementation of high-performance servers, I can't unde

Unix tips: Become a better blogger with Unix

Introduction: Do you know that blogging works in conjunction with UNIX (R)? UNIX's built-in Web and text processing tools enable you to create blogs quickly and easily. Explore some handy tips for improving the creative skills of UNIX blogs. UNIX® has a lot in common with web blogs or blogs. In addition to being the native environment for most Web servers and th

Emacs and Vim: God's editor and editor God

AI lab was writing ITS operating systems, some of them were using assembly languages, and some were using Lisp. Currently, Lisp is still widely used in AI research. With such a powerful extension language, Emacs is destined to develop in an omnipotent direction. Gradually, people use Emacs instead of writing programs, writing documents, managing file systems, running terminals, receiving emails, surfing the internet, and listening to music ......, It's really hard to handle. Even some people us

A simple UNIX-Linux CFS annotation, unix-linuxcfs

A simple UNIX-Linux CFS annotation, unix-linuxcfsThis series is named simple UNIX, but it also includes the details of various UNIX-like systems. This series of articles are based on my study notes over the past few years, focusing on the analysis of various UNIX,

Build an advanced programming and learning environment in UNIX --- apue. h, unix --- apue. h

Build an advanced programming and learning environment in UNIX --- apue. h, unix --- apue. h This course has just learned advanced programming in UNIX, but has encountered many problems when setting up the programming environment of this book. Fortunately, there are various solutions on the Internet that allow me to finally solve the problem. I would like to than

unix/Unix-like system FTP server PROFTPD installation Configuration Guide

PROFTPD is a UNIX platform or Unix-like platform (such as Linux, FreeBSD, etc.) FTP server program, it is under the Free Software Foundation's copyright notice (GPL) under the development, release of free software, that is, anyone to comply with the GPL copyright notice, Can modify the source start code at will. The PROFTPD design goal is to implement a secure and easily configured FTP Server. At present

UNIX & Linux University Tutorial (iv): UNIX file system, process, and job control

Chapter 23rd UNIX File SystemNamed pipe Mkfifo:mkfifo [-M mode] pipe. Named pipes must be created explicitly and will not disappear (the RM command can be removed).The proc file is a pseudo-file used to access kernel information. For example, if a process ID is 1952, the process-related information can be found in a file in the/proc/1952 directory.The VFS (virtual file system) implements the details of file processing.24th Directory Operations~ Repres

"Unix&linux Size Tutorial" Learning Note 6--unix file system

1:unix file Type-3 typesNormal files (regular files): Text files (plain text, scripts, source programs, configuration files, HTML, etc.), binary files (multimedia files, databases, etc.)Directories: for organizing filesPseudo-file: does not store data for the purpose of providing a service. Divided into three kinds:Special files: Device drivers, file representations of physical devices (keyboards, monitors, etc.)Named pipes: Directing the output of on

UNIX advanced environment programming (14) file IO, unix programming 14io

UNIX advanced environment programming (14) file IO, unix programming 14io Spring is coming. In addition to work and study, everyone must exercise and exercise more. Haidao, which was shot in haidao Huaxi, yuandu ruins park last weekend. Go to the topic. O_DIRECT and O_SYNC are flags that the system calls open. Open a file with a specific file descriptor by specifying the flag parameter.These two flags hav

UNIX and UNIX-like system security check notes

Article Title: UNIX and UNIX-like system security check notes. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Here are some personal experience notes. I believe it is useful for UNIX or U

17 principles 2 of UNIX design (Unix programming art note)

I recently studied Unix programming art. The first chapter is very good. It tells us a lot about the history and philosophical basis of Unix. The most important part is the 17 design principles mentioned. I know many principles, but I have never summarized them in such detail. Most of the content below comes from the book "Unix programming art", which is a small

Stream editor sed uses the summary and uses sed to extract strings from text. The editor sed

practical to combine the two! Sed is one of the most useful tools in Linux and UNIX toolbox, and has very few parameters. Sed reads a row from the input (this input can be a pipe or file), matches the data with the provided editing command, and modifies the data in the stream in the way specified in the command, then the generated data is output to STDOUT. After the stream editor matches all commands with

How can I obtain the current UNIX timestamp (UNIX timestamp) in different programming languages )?

Java Time Javascript Math. Round (new date (). gettime ()/1000)The unit of the value returned by gettime () is millisecond. Microsoft. NET/C # Epoch = (datetime. Now. touniversaltime (). ticks-621355968000000000)/10000000 MySQL Select unix_timestamp (now ()) Perl Time PHP Time () PostgreSQL Select extract (epoch from now ()) Python Import time first and then time. Time () Ruby Obtain

[Test Tool] a tool that converts Unix time to general time. The test tool is unix.

[Test Tool] a tool that converts Unix time to general time. The test tool is unix. A tool for converting Unix time to general timeDemo effect: Click convert: Source code: Function calctime2 () {var time = invalid argument Doc ument. getElementById ("inpTime "). value; if (time = "") {alert ("time is blank, enter"); return;} if (isDigit (time) = false) {alert ("t

UNIX domain sockets (Unix domains)

UNIX domain sockets are used to communicate between processes running on the same machine.UNIX domain sockets provide both stream and datagram interfaces. Create a pair of non-named, interconnected UNIX domain sockets. Socketpair1. Naming unix domain sockets1) Socket address format, under Linux as shown in struct Sockaddr_un {sa_family_t sun_family; char sun_path

Unix Timestamp (Unix timestamp) and Beijing time's mutual transfer method

1, in the linux bash Beijing time and Unix time stamp mutual transfer: Get UNIX Timestamp: Command: Date "+%s" Output: 1372654714 Get Beijing Time: Command: Date ' +%y-%m-%d%h:%m:%s ' Output: 2013-07-01 12:55:56 Unix timestamp transfer to Beijing time: Command: Date [email protected] ' +%y-%m-%d%h:%m:%s ' Output: 2013-07-01 12:58:34

Introduction to advanced programming in Unix environment: Basic Unix knowledge (III)

Introduction to advanced programming in Unix environment: Basic Unix knowledge (III) Some shame ~, I haven't updated it for a year and a half. I came to a new organization and made an embedded system as I expected. I thought it was okay;This time, I continue with the advanced programming series for the unix environment, hoping to stick to it :)1. programs and pro

[UNIX advanced programming] configuration of the Unix programming environment (apue. h and error. h)

1. Configuration Apue. H is a file written by the author. It contains common header files and is not provided by the system. This includes common header files and definitions of error handling functions. It is really convenient to use. To use it, perform the following operations to complete the configuration. Download the compressed src.tar.gzsource code package at http://www.apuebook.com. 1. decompress the package to the/home/user/directory. 2. Modify wkdir =/home/XXX/apue.2e in make. Define

UNIX advanced environment programming (13) signal, unix programming 13 Signal

UNIX advanced environment programming (13) signal, unix programming 13 Signal The signal is Soft Interrupt. Signals provide an asynchronous way to process events. For example, you can press the End Process key on the terminal to terminate a process in advance. 1. Concept of Signal Each signal has a name whose names are headers with SIG. For example, every time a process calls the abort function, a SIGABRT s

"Unix environment advanced programming" chapter 3rd-file I/O, unix environment Advanced Programming

"Unix environment advanced programming" chapter 3rd-file I/O, unix environment Advanced Programming1. Introduction For most Unix files, I/O only requires five functions: open, read, write, lseek, and close. The functions described in this chapter are often calledI/O without buffering. TermsWithout BufferingIt means that the user's process will not automaticall

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