操作系統(tǒng) 實驗1

1、操作系統(tǒng)實驗報告（實驗名稱 ：實驗一、熟悉linux系統(tǒng)與進程管理 ）操作體統(tǒng)實驗一 熟悉linux系統(tǒng)與進程管理一.實驗名稱熟悉linux系統(tǒng)與進程管理二.實驗目的熟悉linux系統(tǒng)與進程管理三.實驗環(huán)境Dos 和linux系統(tǒng)四.實驗過程 查看：下載文檔：登陸Linux系統(tǒng)：簡單的C語言程序在Linux系統(tǒng)中的實現(xiàn)：#include<stdio.h>int main()printf("Hello Linux!n");1.2.3.4.五、實驗結果1.2.3.4.結果是僵持60秒程序1：結果：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);結果：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();結果：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");結果：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); 結果：e06620107192168un e06620107$ gcc te

9、ste.ce06620107192168un e06620107$ ./a.outson0son1son9daughter0daughter1daughter2daughter9parent0parent1parent2parent9編寫程序：1、 要求程序運行時，系統(tǒng)中存在如下的進程樹結構，寫出程序源代碼及程序運行結果并在進程樹的相應進程節(jié)點上標上進程號。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