Ò׽ؽØͼÈí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

linuxÖÐfork£¨£©º¯ÊýÏê½â

 Ò»¡¢forkÈëÃÅ֪ʶ
     ÏÈ¿´Ò»¸öÀý×Ó£º
/*
* fork_test.c
* version 1
* Created on: 2010-5-29
* Author: wangth
*/
#include <unistd.h>;
#include <stdio.h>
int main ()
{
pid_t fpid; //fpid±íʾforkº¯Êý·µ»ØµÄÖµ
//´Ëʱ½öÓÐÒ»¸ö½ø³Ì
fpid=fork();
//´Ëʱ²Ù×÷ϵͳÖÐÒѾ­ÓÐÁ½¸ö½ø³ÌÔÚͬʱÔËÐÐ
if (fpid < 0)
printf("error in fork!");
else if (fpid == 0)
printf("I am the child process, my process id is %d\n",getpid());
else
printf("I am the parent process, my process id is %d\n",getpid());
return 0;
}
     ÔËÐнá¹ûÊÇ£º
    I am the parent process, my process id is 2365
    I am the child process, my process id is 2367
    Ò»¸ö½ø³Ì£¬°üÀ¨´úÂë¡¢Êý¾ÝºÍ·ÖÅä¸ø½ø³ÌµÄ×ÊÔ´¡£fork£¨£©º¯Êýͨ¹ýϵͳµ÷Óô´½¨Ò»¸öÓëÔ­À´½ø³Ì¼¸ºõÍêÈ«ÏàͬµÄ½ø³Ì£¬Ò²¾ÍÊÇÁ½¸ö½ø³Ì¿ÉÒÔ×öÍêÈ«ÏàͬµÄÊ£¬µ«Èç¹û³õʼ²ÎÊý»òÕß´«ÈëµÄ±äÁ¿²»Í¬£¬Á½¸ö½ø³ÌÒ²¿ÉÒÔ×ö²»Í¬µÄÊ¡£
    Ò»¸ö½ø³Ìµ÷ÓÃfork£¨£©º¯Êýºó£¬ÏµÍ³ÏȸøеĽø³Ì·ÖÅä×ÊÔ´£¬ÀýÈç´æ´¢Êý¾ÝºÍ´úÂëµÄ¿Õ¼ä¡£È»ºó°ÑÔ­À´µÄ½ø³ÌµÄËùÓÐÖµ¶¼¸´ÖƵ½ÐµÄнø³ÌÖУ¬Ö»ÓÐÉÙÊýÖµÓëÔ­À´µÄ½ø³ÌµÄÖµ²»Í¬¡£Ï൱ÓÚ¿Ë¡ÁËÒ»¸ö×Ô¼º¡£
    ÔÚÓï¾äpid=fork()֮ǰ£¬Ö»ÓÐÒ»¸ö½ø³ÌÔÚÖ´ÐÐÕâ¶Î´úÂ룬µ«ÔÚÕâÌõÓï¾äÖ®ºó£¬¾Í±ä³ÉÁ½¸ö½ø³ÌÔÚÖ´ÐÐÁË£¬ÕâÁ½¸ö½ø³ÌµÄ¼¸ºõÍêÈ«Ïàͬ£¬½«ÒªÖ´ÐеÄÏÂÒ»ÌõÓï¾ä¶¼ÊÇif(pid<0)……
    ΪʲôÁ½¸ö½ø³ÌµÄpid²»Í¬ÄØ£¬ÕâÓëforkº¯ÊýµÄÌØÐÔÓйء£forkµ÷ÓõÄÒ»¸öÆæÃîÖ®´¦¾ÍÊÇËü½ö½ö±»µ÷ÓÃÒ»´Î£¬È´Äܹ»·µ»ØÁ½´Î£¬Ëü¿ÉÄÜÓÐÈýÖÖ²»Í¬µÄ·µ»ØÖµ£º
    1£©ÔÚ¸¸½ø³ÌÖУ¬fork·µ»Øд´½¨×Ó½ø³ÌµÄ½ø³ÌID£»
    2£©ÔÚ×Ó½ø³ÌÖУ¬fork·µ»Ø0£»
    3£©Èç¹û³öÏÖ´íÎó£¬fork·µ»ØÒ»¸ö¸ºÖµ£»
    ÔÚforkº¯ÊýÖ´ÐÐÍê±Ïºó£¬Èç¹û´´½¨Ð½ø³Ì³É¹¦£¬Ôò³öÏÖÁ½¸ö½ø³Ì£¬Ò»¸öÊÇ×Ó½ø³Ì£¬Ò»¸öÊǸ¸½ø³Ì¡£ÔÚ×Ó½ø³ÌÖУ¬forkº¯Êý·µ»Ø0£¬ÔÚ¸¸½ø³ÌÖУ¬fork·µ»Øд´½¨×Ó½ø³ÌµÄ½ø³ÌID¡£ÎÒÃÇ¿ÉÒÔͨ¹ýfork·µ»ØµÄÖµÀ´Åжϵ±Ç°½ø³ÌÊÇ×Ó½ø³Ì»¹ÊǸ¸½ø³Ì¡£
    fork³ö´í¿ÉÄÜÓÐÁ½ÖÖÔ­Ò


Ïà¹ØÎĵµ£º

Linux µÄ¶àÏ̱߳à³ÌµÄ¸ßЧ¿ª·¢¾­Ñé

2009 Äê 4 ÔÂ 23 ÈÕ
±¾ÎÄÖÐÎÒÃÇÕë¶Ô Linux É϶àÏ̱߳à³ÌµÄÖ÷ÒªÌØÐÔ×ܽá³ö 5 Ìõ¾­Ñ飬ÓÃÒÔ¸ÄÉÆ Linux ¶àÏ̱߳à³ÌµÄÏ°¹ßºÍ±ÜÃâÆäÖеĿª·¢ÏÝÚå¡£ÔÚ±¾ÎÄÖУ¬ÎÒÃÇ´©²åһЩ Windows µÄ±à³ÌÓÃÀýÓÃÒÔ¶Ô±È Linux ÌØÐÔ£¬ÒÔ¼ÓÉî¶ÁÕßÓ¡Ïó¡£
±³¾°
Linux ƽ̨ÉϵĶàÏ̳߳ÌÐò¿ª·¢Ïà¶ÔÓ¦ÆäËûƽ̨£¨±ÈÈç Windows£©µÄ¶àÏß³Ì API ÓÐһЩϸ΢ ......

»ùÓÚǶÈëʽLinuxµÄÊÓƵͼÏñ²É¼¯Óë´«Êä

 
ÕªÒª:ÊÓƵͼÏñ²É¼¯¼°´¦Àí¼¼ÊõÔÚÔ¶³ÌÊÓƵ¼à¿ØºÍ¿ÉÊӵ绰ÖÐÓÐ׏㷺µÄÓ¦ÓÃÇ°¾°£¬Çý¶¯ÊÓƵ²É¼¯É豸ºÍ»ñÈ¡ÊÓƵÊý¾Ý²¢½øÐÐÏàÓ¦µÄ´¦Àí£¬ÊÇʵÏÖÕâЩӦÓõĻù´¡¡£Õë¶ÔÕâЩӦÓ㬹¹½¨ÁËÒ»¸ö»ùÓÚǶÈëʽ LinuxºÍ PXA270΢´¦ÀíÆ÷µÄÊÓƵ²É¼¯Óë´«Êäϵͳ£¬ÀûÓà Video4LinuxʵÏÖ USBÉãÏñÍ·ÊÓƵÊý¾Ý²É¼¯£¬²É¼¯µÄÊÓƵÊý¾Ý¾­ JPEGѹËõº ......

LinuxÍøÖ·¾«Ñ¡

¹úÍâ
¡¡¡¡http://lwn.net/
¡¡¡¡http://www.tldp.org/
¡¡¡¡https://rhn.redhat.com/
¡¡¡¡http://www.justlinux.com/
¡¡¡¡http://www.linuxtoday.com/
¡¡¡¡http://www.linuxquestions.org/
¡¡¡¡http://www.fokus.gmd.de/linux/
¡¡¡¡http://www.linux-tutorial.info/
¡¡¡¡http://www.freebsdforums.org/forums/
¡¡¡¡ ......

LinuxϵͳSudoÃüÁîµÄʹÓÃ˵Ã÷

“Sudo” ÊÇUnix/Linuxƽ̨ÉϵÄÒ»¸ö·Ç³£ÓÐÓõŤ¾ß£¬ËüÔÊÐíϵͳ¹ÜÀíÔ±·ÖÅä¸øÆÕͨÓû§Ò»Ð©ºÏÀíµÄ“ȨÀû”£¬ÈÃËûÃÇÖ´ÐÐһЩֻÓг¬¼¶Óû§»òÆäËûÌØÐíÓû§²ÅÄÜÍê³ÉµÄÈÎÎñ£¬±ÈÈ磺ÔËÐÐһЩÏñmount£¬halt£¬suÖ®ÀàµÄÃüÁ»òÕ߱༭һЩϵͳÅäÖÃÎļþ£¬Ïñ/etc/mtab£¬ /etc/samba/smb.confµÈ¡£ÕâÑùÒÔÀ´£ ......

LinuxϵͳÉϼÜÉèVSFTP·þÎñÆ÷ʵÀý½âÎö

     
ʵÑé»·¾³£ºAS4×îС»¯°²×°
ʵÑéÄ¿±ê£º¼ÜÉèVSFTP·þÎñÆ÷
Õâ´ÎÎÒÃÇÀ´Ñ§Ï°LinuxϵͳÖÐµÄ vsftp·þÎñÆ÷µÄÅäÖá£
ÏÂÃæÎÒÃÇ¿ªÊ¼ÁË£¡Ê×ÏÈÎÒÃÇ°²×°vsftp·þÎñÆ÷¶ËµÄÈí¼þ¡£
vsftpd·þÎñÆ÷µÄ°²×°ÎļþλÓÚµÚ1ÕÅ°²×°¹âÅÌÖС£
ʹÓÃrpmÃüÃû¿É˳Àû°²×°¸ÃÈí¼þ°ü¡£
# rpm -ivh vsftpd-2.0.1-5.i386.r ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØͼ | ¸ÓICP±¸09004571ºÅ