curl wget的使用以及socket实现

先说我的

curl -o /dev/null -vL -H "Host: www.4299.com" http://10.10.110.42-v 意为verbose 显示的更人性化 更多 包括请求头和相应头等信息L 有的网址是自动跳转的。使用-L参数，curl就会跳转到新的网址。curl -L http://item.taobao.com/item.htm?id=25823396605   键入上面的命令，结果就自动跳转为http://detail.tmall.com/item.htm?id=25823396605  curl -L www.sina.com   则自动跳转到www.sina.com.cnH 即自定义头部信息传递给服务器 

另一个是

curl -vx 127.0.0.1:8081 -o /dev/null "http://cc.stream.qqmusic.qq.com/M500004Fo3dp3eyNKs.mp3?vkey=FC4C91B33D4FE5F5B7EFBx代表proxy 

wget与curl对比-d 意为显示debug信息-e 即execute一个命令  vim /etc/wgetrc看一些使用wget -d 'http://g.search.alicdn.com/img/i4/14611056290639161/TB2wnKEaVXXXXXBXXXXXXXXXXXX_!!11434611-0-saturn_solar.jpg_250x250.jpg_.webp' -e 'http_proxy=10.10.110.40:80' --header="Accept-Encoding:gzip, deflate, sdch" curl -vx "10.10.110.40:80" --header "Accept-Encoding:gzip, deflate, sdch" -o a.jpg "http://g.search.alicdn.com/img/i4/14611056290639161/TB2wnKEaVXXXXXBXXXXXXXXXXXX_!!11434611-0-saturn_solar.jpg_250x250.jpg_.webp"wget -d 'http://gd1.alicdn.com/imgextra/i1/60249411/T21lJMXC8aXXXXXXXX_!!60249411.jpg' -e 'http_proxy=10.10.110.40:80' --header="Accept-Encoding:gzip, deflate, sdch" curl -vx "10.10.110.40:80" --header "Accept-Encoding:gzip, deflate, sdch" -o a.jpg "http://gd1.alicdn.com/imgextra/i1/60249411/T21lJMXC8aXXXXXXXX_!!60249411.jpg"

参考链接

http://www.cnblogs.com/liqiu/p/3200582.html
http://www.aiezu.com/system/linux/linux_curl_syntax.html#respond

有没有觉得curl wget都不是很吊 那我来个吊的：自定义一个http

#include <stdio.h>                                                                        #include <stdlib.h>#include <string.h>#include <unistd.h>#include <sys/types.h>#include <sys/socket.h>#include <netinet/in.h>#include <arpa/inet.h>#include <errno.h>#define BUFSIZE 1024//40是ats  45是nginx#define DestIp "10.10.110.40"            #define DestPort 80//#define Req "GET /foo1.html HTTP/1.1\r\nHost: 10.10.110.45\r\nCache-Control: no-cache\r\nConnection: Close\r\n\r\n"//#define Req "GET /foo1.html HTTP/1.1\r\nHost: 10.10.110.45\r\nConnection: Close\r\n\r\n"//#define Req "GET /test3.html HTTP/1.1\r\nHost: 10.10.110.45\r\nConnection: Close\r\n\r\n"//#define Req "GET / HTTP/1.1\r\nHost: www.sina.com\r\nConnection: Close\r\n\r\n"//#define Req "GET /test3.html HTTP/1.1\r\nHost: 10.10.110.45\r\nConnection: Close\r\n\r\n"//curl -vx "10.10.110.40:80" --header "Accept-Encoding:gzip, deflate, sdch" -o a.jpg "http://gd1.alicdn.com/imgextra/i1/60249411/T21lJMXC8aXXXXXXXX_!!60249411.jpg"#define Req "GET /imgextra/i1/60249411/T21lJMXC8aXXXXXXXX_!!60249411.jpg HTTP/1.1\r\nHost: gd1.alicdn.com\r\nAccept-Encoding: gzip, deflate, sdch\r\nConnection: Close\r\n\r\n"#define ReqLen sizeof(Req)int main(int argc, char *argv[]){    ssize_t i;    int nRequestLen;    char strResponse[BUFSIZE]={0};    char strRequest[BUFSIZE]={0};    int sockfd, numbytes;    struct sockaddr_in dest_addr; /* connector's address information */    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {        perror("socket");        exit(1);    }           dest_addr.sin_family = AF_INET; /* host byte order */    dest_addr.sin_port = htons(DestPort); /* short, network byte order */    dest_addr.sin_addr.s_addr = inet_addr(DestIp);    /* Create and setup the connection */    if (connect(sockfd, (struct sockaddr *)&dest_addr,sizeof(struct sockaddr)) == -1)     {        perror("connect");        exit(1);        }    /* Send the request */   strncpy(strRequest, Req,ReqLen);        nRequestLen = ReqLen;
    if (write(sockfd,strRequest,nRequestLen) == -1)     {        perror("write");        exit(1);   }    /* Read in the response */    while(1) {        i = read(sockfd,strResponse,BUFSIZE-1);        if(0 >= i){            break;        }        strResponse[i]='\0';        //strResponse[32] = '\0';        printf(strResponse);    }    /* Close the connection */    close(sockfd);}