sl.c

Unix shell是unix的命令解释程序

#include "_dir.h"
#include "_md.h"
#include "_time.h"
#include "_date.h"
#include "_del.h"
#include "_ren.h"
#include "_find.h"
#include "_copy.h"
#include "_cd.h"
#include "_help.h"
#include "_fork.h"
#include "_more.h"
//#include "datetime.h"
#include "_pwd.h"
#include<string.h>
#include<stdio.h>
int main()
{
	char line[90];
	char v1[30],v2[30],v3[30];
	char *f;

//	for(;;)
//	{
l:
	printf("@");
	fgets(line,sizeof(line),stdin);
	sscanf(line,"%s%s%s",v1,v2,v3);
//	printf("%s\t%s\t%s\n",v1,v2,v3);
	int n1;
//	char *f;
	n1=-1;
	if(strcmp(v1,"exit")==0)n1=0;
	if(strcmp(v1,"dir")==0)n1=1;
	if(strcmp(v1,"pwd")==0)n1=2;
	if(strcmp(v1,"md")==0)n1=3;
	if(strcmp(v1,"date")==0)n1=4;
	if(strcmp(v1,"time")==0)n1=5;
	if(strcmp(v1,"del")==0)n1=6;
	if(strcmp(v1,"ren")==0)n1=7;
	if(strcmp(v1,"find")==0)n1=8;
	if(strcmp(v1,"copy")==0)n1=9;
	if(strcmp(v1,"cd")==0)n1=10;
	if(strcmp(v1,"more")==0)n1=11;
	if(strcmp(v1,"help")==0)n1=12;
	if(strncmp(v1,"./",2)==0)n1=13;
	switch(n1)
	{
        	case 0:
                	return 0;
			break;
		case 1:
//			printf("hehe!");
			_dir(v2);
			break;
		case 2:
			_pwd();
			break;
		case 3:
			_md(v2);
			break;
		case 4:
			_date();
			break;
		case 5:
			_time();
			break;
		case 6:
			_del(v2);
			break;
		case 7:
			_ren(v2,v3);
			break;
		case 8:
			_find(v2,v3);
			break;
		case 9:
			_copy(v2,v3);
			break;
		case 10:
			_cd(v2);
			break;
		case 11:
			_more(v2);
			break;
		case 12:
			_help();
			break;
		case 13:
	//		printf(v1);
//			clrscr();
			printf("the length of v1 is :%d\n",strlen(v1));
			f=strtok(strtok(v1,"."),"/");
		//	strtok(NULL,"/");
			printf("%s\n",f);
	//		strtok(NULL,".");
			_fork(f,v2,v3);
			break;
		default:
			printf("command not found.\n");
			break;
	}
	goto l;
	
//	}
//	if(n1==1)printf("fuck!");
//	else printf("fuck too!");
        return 0;
}