操作系统 实验1

1、操作系统实验报告（实验名称 ：实验一、熟悉linux系统与进程管理 ）操作体统实验一 熟悉linux系统与进程管理一.实验名称熟悉linux系统与进程管理二.实验目的熟悉linux系统与进程管理三.实验环境Dos 和linux系统四.实验过程 查看：下载文档：登陆Linux系统：简单的C语言程序在Linux系统中的实现：#include<stdio.h>int main()printf("Hello Linux!n");1.2.3.4.五、实验结果1.2.3.4.结果是僵持60秒程序1：结果：程序一：#include "stdio.h"mai

2、n()int i,j,k;if (i=fork()j=wait();printf("Parent Process!n");printf("i=%d,j=%d,k=%dn",i,j);elsek=getpid();printf("Child Process!n");printf("i=%d,k=%dnn",i,k);结果：e06620107192168un e06620107$ gcc testa.ce06620107192168un e06620107$ gcc -o testa testa.ce066201071

3、92168un e06620107$ ./testaChild Process!i=0,k=3544Parent Process!i=3544,j=3544,k=134513639程序2#include<stdio.h>main()int p1,p2;while(p1=fork()=-1);if(p1=0)printf("b.My process ID is %d",getpid();elsewhile (p2=fork()=-1);if(p2=0)printf("c.My process ID is %d",getpid();结果：e066

4、20107192168un e06620107$ gcc testc.ce06620107192168un e06620107$ ./a.outb.My process ID is 15226c.My process ID is 15227e06620107192168un e06620107$程序3：main() int m,n,k; m=fork(); printf("PID:%dt",getpid(); printf("The return value of fork():%dtt",m); printf("hen"); n=f

5、ork(); printf("PID:%t",getpid(); printf("The return value of fork ():%dtt",n); printf("han"); k=fork(); printf("PID:%dt",getpid(); printf("The return value of fork():%dtt",k); printf("hon");结果：e06620107192168un e06620107$ ./a.outPID:15703 T

6、he return value of fork():0 hePID:15702 The return value of fork():15703 hePID:The return value of fork ():0 haPID:The return value of fork ():15705 haPID:15707 The return value of fork():0 hoPID:15702 The return value of fork():15707 hoe06620107192168un e06620107$ PID:The return value of fork ():0h

7、aPID:The return value of fork ():15704 haPID:15709 The return value of fork():0 hoPID:15703 The return value of fork():15709 hoPID:15706 The return value of fork():0 hoPID:15705 The return value of fork():15706 hoPID:15708 The return value of fork():0 hoPID:15704 The return value of fork():15708 ho程

8、序4：#include<stdio.h>main() int p1,p2,i;while(p1=fork()=-1);if(p1=0)for(i=0;i<10;i+)printf("son%dn",i);elsewhile(p2=fork()=-1);if(p2=0)for(i=0;i<10;i+)printf("daughter%dn",i);elsefor(i=0;i<10;i+)printf("parent%dn",i); 结果：e06620107192168un e06620107$ gcc te

9、ste.ce06620107192168un e06620107$ ./a.outson0son1son9daughter0daughter1daughter2daughter9parent0parent1parent2parent9编写程序：1、 要求程序运行时，系统中存在如下的进程树结构，写出程序源代码及程序运行结果并在进程树的相应进程节点上标上进程号。程序：#include<stdio.h>main()int m,n,p;m=fork();printf("PID:%dt",getpid();printf("an");n=for

10、k();printf("PID:%dt",getpid();printf("bn");if(m>0 && n>0)p=fork();printf("PID:%dt",getpid();printf("cn");    PID:The return value of fork ():15708 aPID:15713 The return value of fork():0 cPID:15712 The return value of fork():15709 cPID:157