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 mkdir /media/cdrom  mount /dev/cdrom /media/cdrom
 
2 ÔÚ/etc/yum.repos.dϵÄrhel-debuginfo.repo
cp rhel-debuginfo.repo  myum.repo
 
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3ÐÞ¸Ämyum.repo Îļþ
  [base]
  name=server local sources
  baseurl=file:///media/cdrom/CentOS
  enabled=1
  gpgcheck=0
  gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release (¿ÉÊ¡ÂÔ)
  
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            gpgcheck ÊÇ·ñ¼ì²éGPGÇ©Ãû£¬£¨ÑéÖ¤Òª°²×°µÄÈí¼þ°üÊDz»ÊÇREDHAT¹Ù·½µÄ£©
          ×¢Òâ  ÈôҪʹÓÃÇ©ÃûÑéÖ¤ÔòÒª°²×° RPM-GPG-KEY-redhat-release°ü        
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¡¡¡¡int fstat(int filedes,struct stat * buf);
¡¡¡¡int lstat(const char * pathname, struct stat *buf);
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ÐéÄâ»úLinuxÓëËÞÖ÷»úWindows XPÎļþ»¥·Ã

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1¡¢ÏȽ«ÐéÄâ»úPower Off£¬ÔÚVirtual Machine Setting¶Ô»°¿òÀïµã»÷×óϽǵēAdd”£¬Ñ¡Ôñ“Hard Disk”£¬Ö®ºóÑ¡Ôñ“Create a new virtual disk”£¬·ÖÅäÈÝÁ¿£¬ÆäËûĬÈÏÅäÖþͿÉÒÔÁË¡£
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java ²¶×½ÐźÅ(linuxϵÄkill,ctrl+c)

import sun.misc.Signal;
import sun.misc.SignalHandler;
/***
* javaÐźŴ¦Àídemo
* @author jiang_qh
*
*/
public class SignalHandlerExample implements SignalHandler{
private SignalHandler oldHandler;
public void handle(Signal signal) {
System.out.println("Signal handler called for signal " ......
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