argv 0

Each C program has a main function, and each main function has a argv parameter, which is an array of strings, the value of which is specified by the parent process of the C program when it is started by the exec* function.A lot of people say that

Well, some compiler initialization will produce such parameters.ARGC is the total number of arguments for the command line, argv[] is a argc parameter, where the No. 0 parameter is the full name of the program1. Several common types of C + +

@python __file__ and Argv[0]Under Python, there are two ways to get the current execution of the main script: Sys.argv[0] and __file__.SYS.ARGV[0]The best way to get the main execution file path is to use sys.argv[0], which may be a relative path,

Under Python, there are two ways to get the current execution of the main script: Sys.argv[0] and __file__.SYS.ARGV[0]The best way to get the main execution file path is to use sys.argv[0], which may be a relative path, so it's safe to take a second

http://andylin02.iteye.com/blog/933237import os,sysdirname, filename = os.path.split(os.path.abspath(sys.argv[0]))print "running from", dirnameprint "file is", filename__file__ 是用来获得模块所在的路径的，这可能得到的是一个相对路径，比如在脚本test.py中写入：#!/usr/bin/env pythonprint __

Some time ago, in earlier versions, php did not support any object-oriented programming syntax. zend Engine (ZE1) was introduced in php4, and several new features emerged, including object data types. php4 object Some time ago, in earlier versions,

Objects of the PHP4 Once upon a time, in an earlier version, PHP did not support any object-oriented programming syntax. Introducing the Zend Engine (ZE1) in PhP4, several new features have emerged, including object data types. Evolution of PHP

A c ++ Licensing Program-general Linux technology-Linux programming and kernel information. For details, see the following. Enter "bd-h" for help. The following is the source code (for the code for processing command line parameters, refer to vim ):

Here's an example udp echo server I created from a simple UDP example (originally to help another thread question, now solved ). additionally, it shows how to use select () to poll the socket (with an optional time out ). Compiled and tested on and

Freetds introduction, installation, configuration and usage, freetds Introduction What is FreeTDS?In short, FreeTDS is a library that allows you to access Microsoft's SQL database in Linux! FreeTDS is an open-source Library (if you like it, you can

Most buffer overflow problems in C can be traced directly to the standard C library. The worst culprits are problematic string operations (strcpy, Strcat, sprintf, and get) that do not perform self-variable checks. In general, strict rules such as

What is FreeTDSSimply put, FreeTDS is a library that enables access to Microsoft's SQL database under Linux systems! FreeTDS is an open source (if you prefer to be called free) of the library, is the TDS (table column data stream) protocol is

Getopt-The optional "description" of the parse command getopt is just a simple parse command option that can only be parsed in a simple format, with the following format: 1, form: cmd [-a][-b]//parsing of short options, 2, Shape: cmd [-A a_argument ]

Introduction: Some time ago, I had Transplanted the uClinux-2.0.x and uClinux-2.4.x kernel, my porting is basically starting from scratch, Linux does not support the code of the target machine, so thisMigration is basically a new support for a

    #includeint main(void){ char *ptr = "Linux"; *ptr = 'T'; printf("\n [%s] \n", ptr); return 0;}     Q: Can you write a program to modify its name when it runs? (Can you write a program that changes its own name when run

This article mainly introduces how to implement socket probe and web Service examples in python. If you need it, refer to the following operating system: linux Software environment: Python 2.7.3 Usage: The Code is as follows: $./MonSocket. py# This

Operating System: linuxSoftware environment: Python 2.7.3 Usage:Copy codeThe Code is as follows:$./MonSocket. py# This is check the URI or Socket of the script #Usage:./MonSocket. py-d URL; This is Http protocol./MonSocket. py-s socket IP or domain;

Int main (INT argc, char * argv []) Argv is a pointer. Argc is an integer   Char ** argv or: char * argv [] or: Char argv [] [] The main () brackets are fixed. The following is an example to understand the usage of these two parameters:

Copy an empty file and ignore its empty contentFirst of all, what is called an empty file! For example, the following code:1#include 2#include string.h>3#include 4#include 5#include 6#include 7#include 8#include 9 Ten #defineMODE o_creat| o_rdwr|

[Go] about the main function 10:39:33 | category: Learning Space | font size subscription From: http://blog.csdn.net/jylnn/archive/2008/03/08/2158429.aspx C's design principle is to use functions as the component module of the program. The main ()