操作系统实验的一报告材料材料

1、实验目的 :了解和操作线程和进程的概念 ,熟悉 linux 下的命令,熟悉 vi 编辑， gcc 编译， gdb 调试实验思想 : 线程与进程实现结果：1.cat : 把档案串连接后传到基本输出（萤幕或加 fileName 到另一个档案）cd dirName 变换工作目录至 dirName 。 其中 dirName 表示法可为绝对路径或 相对路径。若目录名称省略，则变换至使用者的 home directory （ 也就是刚 login 时所 在的目录 ）。chmod Linux/Unix 的档案调用权限分为三级 : 档案拥有者、群组、其他。利用 chmod 可以藉以控制档案如何被他人所调用。c

2、p 将一个档案拷贝至另一档案，或将数个档案拷贝至另一目录cut cut -cnum1-num2 filename显示每行从开头算起 num1 到 num2 的文字find 将档案系统内符合 expression 的档案列出来ln 硬连结的意思是一个档案可以有多个名称，而软连结的方式则是产生一个特殊的档案，该档案的内容是指向另一个档案的位置ls 显示指定工作目录下之内容（列出目前工作目录所含之档案及子目录）。more 一页一页地显示更多内容mv 将一个档案移至另一档案，或将数个档案移至另一目录。rm 删除档案及目录rmdir 删除空的目录touch 指令改变档案的时间记录at linux at

3、命令允许相当复杂的时间指定cal l 日历命令，可以显示当月日历、当年日历、指定月份年份的日历等。date 能够在 shell 上直接显示当前时间，根据选项参数可以根据指定格式输出。passwd 用来更改使用者的密码who 查看当前登录用户的情况mail 收发邮件命令talk 与其他使用者对谈wall 会将讯息传给每一个 mesg 设定为 yes 的上线使用者。write 传讯息给其他使用者kill 关闭进程2.UIDPID PPID CSZRSS PSR STIME TTYzx1521 1019786 9012 1 22:21TIME CMD00:00:0000:00:00ps 显示瞬间行程

4、 (process) 的动态/usr/lib/evolution/evolution-data-server-2.28-oaf-activate-iid=OAFIID:GNOME_Evolution_DataSzx 2562 1 0 6084 2748 0 22:51zx25802556066087028122:51?00:00:00gnome-sessionzx26112580041143032022:51?00:00:02/usr/bin/ibus-daemon -ximzx261525800821360022:51?00:00:00/usr/bin/ssh-agent /usr/bin/

5、dbus-launch -exit-with-session gnome-sessionzx261884676422:5100:00:00/usr/bin/dbus-launch -exit-with-session gnome-sessionzx2619830 152022:5100:00:00/bin/dbus-daemon -fork -print-pid 5 -print-address 7 -sessionzx2620 26110 2263334822:5100:00:00/usr/lib/ibus/ibus-gconfzx2622 2611 014567 2810422:5100:

6、00:06 python/usr/share/ibus/ui/gtk/main.pyzx26244377613622:5100:00:00/usr/lib/ibus/ibus-x11 -kill-daemonzx26272013445622:5100:00:00/usr/lib/libgconf2-4/gconfd-2zx2629 261164501072822:5100:00:01/usr/lib/ibus-pinyin/ibus-engine-pinyin -ibuszx2640166523480 22:5100:00:00/usr/lib/gvfs/gvfsdzx264625805185

7、81320 22:5100:00:00gnome-power-managerzx2647 25800 12438124961 22:5100:00:00 nm-applet-sm-disablezx2649 25800 12281 177760 22:51 ?00:00:00 gnome-panelzx26511 0 7570264022:5100:00:00/usr/lib/gvfs/gvfs-fuse-daemon /home/zx/.gvfszx2653 25801 202112559222:5100:00:11/usr/bin/compizzx2656 2580 0 28032 406

8、120 22:51 ?00:00:06 nautiluszx26581 0 23908474822:5100:00:05/usr/bin/pulseaudio -start -log-target=syslogzx2660 2580 0 5014795622:5100:00:00bluetooth-appletzx26612580 0 4759632822:5100:00:00/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1zx2680 2658 0 2688 299222:5100:00:00/usr/lib/pul

9、seaudio/pulse/gconf-helperzx 2684 1 0 955 10720.5 -kzx26861 0 8227/usr/lib/gvfs/gvfs-gdu-volume-monitorzx26881 0 10579/usr/lib/bonobo-activation/bonobo-activation-server0 22:51 ? 00:00:00 syndaemon -i3904022:51?00:00:003668022:51?00:00:00-ac-activate-ior-output-fd=19zx2702 1 0 11332 15472 1 22:5100:

10、00:02/usr/lib/gnome-panel/wnck-applet-oaf-activate-iid=OAFIID:GNOME_Wncklet_Factory -oaf-ior-fdzx2703 1 0 1834 2392 0 22:5100:00:00/usr/lib/gvfs/gvfs-gphoto2-volume-monitorzx2704 1 0 9570 11648 1 22:5100:00:00/usr/lib/gnome-applets/trashapplet-oaf-activate-iid=OAFIID:GNOME_Panel_TrashApplet_Factoryz

11、x27061 0 4290/usr/lib/gvfs/gvfs-afc-volume-monitorzx27121 0 135492348022:51?00:00:0014364022:51?00:00:00/usr/lib/indicator-applet/indicator-applet-session-oaf-activate-iid=OAFIID:GNOME_FastUserSw-oaf-activate-iid=OAFIID:GNOME_ClockApplet_Factory -oaf-izx2716 1 0 14291 13448 0 22:5100:00:00/usr/lib/i

12、ndicator-applet/indicator-applet-oaf-activate-iid=OAFIID:GNOME_IndicatorApplet_Fazx2717 1 0 5948 9324 0 22:5100:00:00/usr/lib/gnome-panel/notification-area-applet-oaf-activate-iid=OAFIID:GNOME_NotificationArezx27311045764532122:51?00:00:00/usr/lib/indicator-messages/indicator-messages-servicezx27321

13、016302024122:51?00:00:00/usr/lib/gvfs/gvfsd-metadatazx273410213324576022:51?00:00:00/usr/lib/indicator-sound/indicator-sound-servicezx27361060764312122:51?00:00:00/usr/lib/indicator-application/indicator-application-servicezx2737 2653 0 4585121 22:5100:00:00 /bin/sh -c/usr/bin/compiz-decoratorzx2738

14、 27370665911804022:51?00:00:00/usr/bin/gtk-window-decoratorzx2744 1048014952122:51?00:00:00/usr/lib/indicator-me/indicator-me-servicezx2746 1045814860022:51?00:00:00/usr/lib/indicator-session/indicator-session-servicezx2757 1 0 1686 2452 0 22:5100:00:00/usr/lib/gvfs/gvfsd-burn -spawner :1.8 /org/gtk

15、/gvfs/exec_spaw/1zx27731045822740022:52?00:00:00gnome-screensaverzx2783101032512832122:52?00:00:00/usr/lib/notify-osd/notify-osdzx28672580049157620122:52?00:00:00/usr/lib/gnome-disk-utility/gdu-notification-daemon00:00:00 pythonzx 2882 2580 0 8026 15624 1 22:52/usr/share/system-config-printer/applet

16、.pyzx 2883 2580 0 17280/usr/lib/evolution/2.28/evolution-alarm-notifyzx 2889 1 0 19777118600 22:52?00:00:0090000 22:52?00:00:00/usr/lib/evolution/evolution-data-server-2.28-oaf-activate-iid=OAFIID:GNOME_Evolution_DataSzx2893 1 0 9080 11536 0 22:5200:00:00/usr/lib/evolution/2.28/evolution-exchange-st

17、orage -oaf-activate-iid=OAFIID:GNOME_Evolution_zx29111 022:52 ?00:00:02gnome-terminalzx29122911 0 4977121 22:52 ?00:00:00gnome-pty-helperzx2913 29110160035441 22:52 pts/000:00:00 bashzx2934258001039713032022:52?00:00:00update-notifierzx30181038423020022:54?00:00:00/usr/lib/gvfs/gvfsd-co

18、mputer -spawner :1.8 /org/gtk/gvfs/exec_spaw/2zx 3104 1 0 29947 49336 0 22:59 ? 00:00:02 evince/home/zx/ 桌面 / 到 操作系统 的链接 /ass1.pdfzx 310610 1172 2024022:59?00:00:00/usr/lib/evince/evincedzx 327411 60787 91996023:00?00:00:08/usr/lib/openoffice/program/soffice.bin -writer /home/zx/桌面/到操作系统的链接 /实验一指导 .

19、dzx 3312 10458 560 123:02?00:00:00/bin/sh/usr/lib/firefox-3.6.8/firefoxzx 3317 33120458 568 123:02?00:00:00/bin/shzx3321 3317564232696721 23:02?00:00:18/usr/lib/firefox-3.6.8/firefox-binzx3341 3321023776219961 23:02?00:00:01/usr/lib/flashplugin-installer/libflashplayer.so 3321zx338029570117316720 23

20、:03 pts/000:00:00 su zxzx338933800159935440 23:03 pts/000:00:00 bashzx343334140117617241 23:03 pts/000:00:00 su zxzx344134330159935480 23:03 pts/000:00:00 bashzx34753441067911000 23:07 pts/000:00:00 ps -w -F -u zx3./ 实现交换 a， b 的数值#includeint main()int a,b,c;a = 1;b = 2;printf(a=%dn,a);printf(b=%dn,b

21、);c = a;a = b;b = c;printf(after exchangedn);printf(a=%dn,a);printf(b=%dn,b);return 0;gdb 调试内容：(gdb) runStarting program: /home/zx/p1Breakpoint 1, main () at p1.c:66 a = 1;(gdb) runThe program being debugged has been started already.Start it from the beginning? (y or n) nProgram not restarted.(gdb)

22、next7 b = 2;(gdb) next8 printf(a=%dn,a);(gdb) nexta=19 printf(b=%dn,b);4编写一个控制台应用程序，命名为an_ch2_1b 。这个程序不断地输出如下行：Those output come from child,系统时间 另外写一个控制台应用程序，命名为an_ch2_1a 。这个程序创建一个子进程，执行 an_ch2_1b 。这个程序不断地输出如下行：Those output come from child,系统时间 观察程序运行的结果，并对你看到的现象进行解释。程序代码如下：/an_ch2_1a.c/ 调用子进程运行 an_

23、ch2_1b#include #include #include int main() int pid;if(pid = fork() = 0) system(./an_ch2_1b.out);return 0;/an_ch2_1b.c/ 输出系统时间#include#include #include #include int main()time_t now;struct tm *timenow;while(1)time(&now);time now = localtime(&no w);printf(Those output come from child, %sn,asctime(tim

24、enow);return 0;*0$ zxubuMu:文件(T编誉肴何弊制门幣前(H)ThoseoutputcumeI unichild.TueNuv221:46:432010Thoseoutputcomefroiicnild.lueNOV221-4G：432mThoeoutputcomefromcnilti.TueNOV221:46:432&10Thoseoutputcomef rimchild.TueNov231:46:433010Thoseoutputcomef ramchilcf.TueNov221；46：43201DThoseoutputcomefromchild.TueNov22l：4&;432010Thoseoutputcomefromchild,TueNOV22U40：432B19Thoseoutputcomefromchild*TueNOV221:46:432013Thoseoutputcometramchild.TueNov771:46:432010Thoseoutputcamefromchild,TueNov221:46:432010Thoseoutp