linux getopt

In Linux, many programs, even those with graphical user interfaces (guis), can accept and process command line options. For some programs, this is the main means to interact with other programs or users. With a reliable and complex command line

Reprinted -- Use of the getopt Function The author writes well.Every day you are using a large number of command line programs. Do you feel that the command line parameters are easy to use? They are all implemented using getopt.Using getopt to write

How to Use the getopt () function to parse parameters? In the process of writing a program recently, part of the time is spent on Processing Parameters by the program. I heard from students about the getopt function today and found that c has a

Http://apps.hi.baidu.com/share/detail/17204074 Getopt is used to parse command line option parameters. You don't have to write your own stuff to process argv. # Include Extern char * optarg; // parameter pointer of the optionExtern int optind, //

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 ]

Transferred from: https://www.cnblogs.com/qingergege/p/5914218.htmlRecently in the Linux C programming, undergraduate time did not study well, hope to learn younger brothers learn lesson.Well, it's a bit verbose, but it's really a piece of advice.

In the morning when looking at the source project Webbench, just at the beginning was a seemingly strange function getopt_long () to get stuck, to tell the truth this function has not seen, naturally do not know what this buddy is doing. So Baidu,

The getopt function can be used to conveniently process command line parameters. The function is prototype: Int getopt (INT argc, char * const argv [], const char * optstring ); The following are key points:1. argc, argv is the two of the main

Standard library function: getopt Header file # include Int getopt (INT argc, char * const argv [], const char * optstring ); Explanation: Take the argc and argv as passed to main function (the argc and argv parameters are the same as int main (INT

1. Source of demandSometimes we need to write some scripts to deal with some tasks, may enter different commands according to different conditions, to accomplish different tasks. Can you do the same thing as the Linux operating system, looking a