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CÓïÑÔ±àдlinuxϵÄÊØ»¤½ø³Ì

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¡¡¡¡ÔÚmainº¯ÊýÖÐÖ´ÐÐ
¡¡¡¡init_daemon();//³õʼ»¯ÎªDaemon
¡¡¡¡¾Í¿ÉÒ԰ѽø³Ì±ä³ÉÊØ»¤½ø³Ì
¡¡¡¡
#include
#include
#include
#include
#include
void
 init_daemon(void
)
{
int
 pid;
int
 i;
if
(pid=fork())
exit
(0);//ÊǸ¸½ø³Ì£¬½áÊø¸¸½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//ÊǵÚÒ»×Ó½ø³Ì£¬ºǫ́¼ÌÐøÖ´ÐÐ
setsid();//µÚÒ»×Ó½ø³Ì³ÉΪеĻỰ×鳤ºÍ½ø³Ì×鳤
//²¢Óë¿ØÖÆÖÕ¶Ë·ÖÀë
if
(pid=fork())
exit
(0);//ÊǵÚÒ»×Ó½ø³Ì£¬½áÊøµÚÒ»×Ó½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//Êǵڶþ×Ó½ø³Ì£¬¼ÌÐø
//µÚ¶þ×Ó½ø³Ì²»ÔÙÊǻỰ×鳤
for
(i=0;i< NOFILE;++i)//¹Ø±Õ´ò¿ªµÄÎļþÃèÊö·û
close
(i);
chdir("/tmp"
);//¸Ä±ä
¹¤×÷Ŀ¼µ½/tmp
umask(0);//ÖØÉèÎļþ´´½¨ÑÚÄ£
return
;
} ......

CÓïÑÔ±àдlinuxϵÄÊØ»¤½ø³Ì

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¡¡¡¡ÔÚmainº¯ÊýÖÐÖ´ÐÐ
¡¡¡¡init_daemon();//³õʼ»¯ÎªDaemon
¡¡¡¡¾Í¿ÉÒ԰ѽø³Ì±ä³ÉÊØ»¤½ø³Ì
¡¡¡¡
#include
#include
#include
#include
#include
void
 init_daemon(void
)
{
int
 pid;
int
 i;
if
(pid=fork())
exit
(0);//ÊǸ¸½ø³Ì£¬½áÊø¸¸½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//ÊǵÚÒ»×Ó½ø³Ì£¬ºǫ́¼ÌÐøÖ´ÐÐ
setsid();//µÚÒ»×Ó½ø³Ì³ÉΪеĻỰ×鳤ºÍ½ø³Ì×鳤
//²¢Óë¿ØÖÆÖÕ¶Ë·ÖÀë
if
(pid=fork())
exit
(0);//ÊǵÚÒ»×Ó½ø³Ì£¬½áÊøµÚÒ»×Ó½ø³Ì
else
 if
(pid< 0)
exit
(1);//forkʧ°Ü£¬Í˳ö
//Êǵڶþ×Ó½ø³Ì£¬¼ÌÐø
//µÚ¶þ×Ó½ø³Ì²»ÔÙÊǻỰ×鳤
for
(i=0;i< NOFILE;++i)//¹Ø±Õ´ò¿ªµÄÎļþÃèÊö·û
close
(i);
chdir("/tmp"
);//¸Ä±ä
¹¤×÷Ŀ¼µ½/tmp
umask(0);//ÖØÉèÎļþ´´½¨ÑÚÄ£
return
;
} ......

linuxÏÂdataguardʹÓÃrman±¸·Ý

oracle dataguardÊÇÖ¸Ò»ÖÖÊý¾Ý¿â¼¶±ðµÄHA·½°¸£¬×îÖ÷ÒªµÄ¹¦ÄÜÊÇÈÝÔÖ£¬Êý¾Ý±£»¤£¬¹ÊÕϻָ´µÈ
ÔÚÉú²úÊý¾Ý¿âµÄÊÂÎñÒ»ÖÂÐÔʱ£¬Ê¹ÓòúÉúµÄÎïÀíÈ«±¸·Ý´´½¨±¸¿â£¬±¸¿âͨ¹ý´«Êä¹ýÀ´µÄ¹éµµÈÕÖ¾×Ô¶¯Î¬»¤±¸ÓÃÊý¾Ý¿â
½«ÖØ×öµÄÊý¾ÝÓ¦Óõ½±¸ÓÿâÉÏ¡£
1£¬Ç°Ì᣺
 primary£º192.168.18.1;
   oracle_SID:db1
 db_unique_name=db1
 
 standby: 192.168.18.2
   oracle_sid:standby
 db_unique_name=standby
  
Ö÷Êý¾Ý¿âµÄ×¼±¸
 1£¬ÉèÖÃÖ÷Êý¾Ý¿âµÄforce logging
 alter database force logging;
 
 2,£¬´´½¨ÃÜÂëÎļþ
  cd $ORACLE_HOME/DBS/ orapwdfile=orapwdb1 password=123 force=yes
 
 3,ÐÞ¸ÄÖ÷¿âµÄ³õʼ»¯²ÎÊý
  alter system set log_archive_config='dg_config=(db1,standby)' scope=both;
  alter system set log_archive_dest1='location=/../db1/arch/ scope=both;
  alter system db_unique_name='db1' scope=both;
 4,Éú³ÉÊý¾Ý¿â±¸·Ý£¬
  conn target sys/123
  backup database forma ......

linux Äں˰汾¼°²¹¶¡ËµÃ÷

ת×Ô£ºhttp://lkml.org/lkml/2005/8/2/242
--------------------------------------------------------------------------------------------
from
Jesper Juhl <>
Subject
Documentation - how to apply patches for various trees
Date
Tue, 2 Aug 2005 23:32:20 +0200
Hi,
How to apply the -rc, -git, -mm and the 2.6.x.y (-stable) patches is a quite
frequently asked question on LKML and elsewhere.
Since so many people seem to be confused by this I gathered it ought to be
properly documented once and for all so we a) get more people testing those
trees and b) get asked this question less often.
So, I sat down and wrote such a document.
Below is a patch to add a new file "applying-patches.txt" to Documentation/
This document describes each of the trees and gives examples on how to apply
the various patches.
Looking forward to your feedback (and possible inclusion).
I guess this document could also be placed somewhere on kernel.org and linked
to from the front page so that ......

Linux ºÍ ¶àÏß³Ì

ÿ´Î¶¼ÊÇÓõ½£¬²éһϣ¬Ð´Ï£¬Õâ´ÎÉÔ΢¼Ç¼Ï±ʼǡ£
ºÍThreadÏà¹Ø£¬»ù±¾µÄÓÐ3¸ö¸ÅÄÏ̵߳Ľ¨Á¢ºÍÏú»Ù£»Ïß³ÌËø£»Ïß³ÌÌõ¼þ
¹ØÓÚ½¨Á¢Ị̈߳º
ret = pthread_create(&thread_id, NULL, Do_Thread, &Do_Thread_Para);
// µÚ2²ÎÊýÊÇthread ÊôÐÔ£¬Ò»°ãÎÒ²»ÓÃÉèÖÃ
// µÚ4¸ö²ÎÊýÊÇDo_ThreadµÄÈë¿Ú²ÎÊý£¬Ò»°ãÎÒ´«Ò»¸ö½á¹¹Ìå½øÈ¥
¹ØÓÚÏú»ÙỊ̈߳º
µÈ´ýÏ߳̽áÊø£ºpthread_join
Ç¿ÐÐɱµôỊ̈߳ºpthread_exit
ÈÃÏß³Ì×ÔÉú×ÔÃð£ºpthread_detach
ÎÒÒ»°ãÓõÄÊǵÚÒ»¸ö£º
pthread_join(thread_id, &Do_Thread_ret);
// µÚ¶þ¸ö²ÎÊýÊÇÏ̷߳µ»ØÖµ 
¹ØÓÚÏß³ÌËø£ºµ±ÒªÔÚ¶à¸öÏ̹߳²ÏíijЩ±äÁ¿µÄʱºò£¬¾ÍÐèÒªÓÃËø¡£ÕâÑù¿ÉÒÔ±£Ö¤Ò»¸öʱ¼äµã£¬Ö»ÓÐÒ»¸öÏß³ÌÄܹ»·ÃÎÊÕâ¸öÏß³Ì
pthread_mutex_t mMutexData£»
pthread_mutex_init(&(mMutexData), NULL); // µÚ2¸ö²ÎÊýÊÇËøµÄÊôÐÔ£¬ÎÒÒ»°ãÓÃĬÈÏ£¬NULL
pthread_mutex_lock(&mMutexData);  // ¼ÓËø
pthread_mutex_unlock(&mMutexData) // È¥Ëø
pthread_mutex_destroy(&mMutexData) // Ïú»Ù
¹ØÓÚÌõ¼þ£ºµ±Ä³¸öÏß³ÌÐèÒªµÈ´ýÆäËûÏ̴߳¦ÀíÍêij¸öÊý¾Ý£¨ÔËÐе½Ä³¸öµã£©µÄ»°£¬¾ÍÐèÒªÓÃÌõ¼þ£¬Ò»°ã¼Ó¸öʱ¼ä²ÎÊ ......

ÔÚLinuxÏÂÅäÖÃjdk»·¾³

Ò»¡¢JDKÏÂÔØ:http://java.sun.comÏÂÔØ×Ô½âѹ°ü:jdk.bin
#sh jdk.bin °´ÌáʾѡÔñyes¡£µ½´ËJDKÒѾ­°²×°Íê³É
¶þ¡¢ÉèÖû·¾³±äÁ¿
¼ÙÈçjdk°²×°µ½ÁË/usrĿ¼Ï¡£ÔÚ/etc/profileÖеÄ×îµ×¶ËÀïдÈëÈçÏÂ:
#vi /etc/profile
#Set Environment by NetSeek (2005/9/5)
export JAVA_HOME=/usr/jdk
export JRE_HOME=/usr/jdk/jre
PATH=$PATH:$JAVA_HOME/bin:JRE_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:
export JAVA_HOME JRE_HOME PATH CLASSPATH
±£´æÍ˳ö¡£
Èý¡¢Ê¹»·¾³±äÁ¿ÉúЧ
#source /etc/profile
#java -version
java version "1.5.0_06"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_06-b05)
Java HotSpot(TM) Client VM (build 1.5.0_04-b05, mixed mode, sharing
ËÄ¡¢²âÊÔJDK:
[root@www ~]# vi hello.java
public class hello {
public static void
main(String args [ ])
{ System.out.println("Hello World!");
System.out.println(" ¿´µ½ÕâЩ´ú±í°²×°³É¹¦À²!");
System.out.println("2005/9/5");
}
}
[root@www ~]# javac hello.java
[ro ......

Linux ¸÷Ä£¿é¼Ü¹¹Í¼


 
  Resources on the site
• Interactive map of GNU/Linux OS and FOSS
• "GNU/Linux is my home" - map of GNU/Linux system
• Interactive map of Linux kernel
• Linux inside
• Linux Technology Reference (single page view)
• Linux kernel diagram
• Linux Device Drivers, 3rd Edition
• Advanced Linux Programming
• Managing Projects with GNU make
• 1000 Hacker Tutorials 2008
• Introduction to Linux
• Bash Guide for Beginners
• Advanced Bash-Scripting Guide
• GNU/Linux Command-Line Tools Summary
• Linux Filesystem Hierarchy
• The Linux Kernel Module Programming Guide
• The Linux System Administrator's Guide
• Linux Network Administrators Guide
• Autobook: GNU Autoconf, Automake, and Libtool src
Linux related products
• Linux kernel poster
• Linux Quick Guide
• Unix like Operating Systems Map
• Unix Quick Guide
Other products
• Computer Ope ......
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