demo/a/practicle/commancli.c

#include<stdio.h>
#include<unistd.h>
#include<sys/socket.h>
#include<sys/types.h>
#include<netinet/in.h>
#include<string.h>
#include<stdlib.h>
int main()
{
	int sd,port;
	char msg[80];
	struct sockaddr_in cli;
	sd=socket(AF_INET,SOCK_STREAM,0);
	bzero(&cli,sizeof(cli));
	printf("enter the port no");
	scanf("%d",&port);
	cli.sin_port=port;
	cli.sin_addr.s_addr=inet_addr("127.0.0.1");
	cli.sin_family=AF_INET;
 	connect(sd,(struct sockaddr*)&cli,sizeof(cli));
	printf("\nenter the command\n");
	scanf("%s",msg);
	write(sd,msg,strlen(msg));
	system(msg);
	read(sd,msg,10);
	printf("%s",msg);
	return 0;
}