Linux atÃüÁʱ¹Ø»ú
from: http://www.pcstu.com/system/Linux/20090804/65873.html
±¾ÎĽéÉÜÏÂlinux atÃüÁîµÄÁíÒ»¸ö×÷ÓãºlinuxÏÂʹÓÃlinux atÃüÁʱ¹Ø»ú¡£
Ê×ÏÈ´´½¨Ò»¸öÎļþ,дÈ룺
#!/bin/sh
shutdown -h now
±£´æÎªpowerÎļþ.Ö®ºó
chmod +x powerÖ®ºó¾ÍÄÜʹÓÃlinux atÃüÁʱ¹Ø»úÁË.
µ«ÊÇÐèÒªÓÐrootȨÏÞ²ÅÄܹػú,
ËùÒÔÐèÒªÊäÈëµÄÃüÁîÈçÏÂ:
sudo at 02:00 tomorrow -f powerÖ®ºóʹÓÃ
sudo atq
¿ÉÒÔ²éÑ¡¶¨Ê±Ö´ÐеÄÈÎÎñ
sudo atrm
¿ÉÒÔɾ³ýÒѾԤ¶¨ºÃµÄÈÎÎñ¡£
Ïà¹ØÎĵµ£º
ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
¶à¸öCommand¿ÉÒÔÔÚÒ»¸öC-frame£¨control frame£©Öз¢ËÍ¡£
Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......
×÷Õߣºsixth
Ò»¡¢LinuxµÄÆô¶¯Á÷³Ì
1. ´ÓBIOSµ½KERNEL
BIOS×Ô¼ì£>MBR(GRUB)£>KERNEL£>KERNEL×Ô½âѹ£>Äں˳õʼ»¯£>ÄÚºËÆô¶¯
2. ÄÚºËÆô¶¯£º´´½¨1££½ø³Ì²¢Ö´ÐУ¬ÓÉËü´´½¨Èô¸ÉÄÚºËỊ̈߳¨kernel thread£©£¬È»ºó×°Èë²¢Ö´ÐгÌÐò/sbin/init£¨±ä³ÉÒ»¸öÓû§½ø³Ì£©¡£´Ëºó£¬init¸ù¾Ý/etc/initt ......
ÏñLinuxÄÚºËÕâÑùÅÓ´ó¶ø¸´ÔӵijÌÐò¿´ÆðÀ´È·ÊµÈÃÈËÍû¶øÉú磬ËüÏóÒ»¸öºÜ´óµÄÇò£¬Ã»ÓÐÆðµãºÍÖյ㡣ÔÚ¶ÁÔ´´úÂëµÄ¹ý³ÌÖУ¬Äã»áÓöµ½ÕâÑùµÄÇé¿ö£¬µ±¶Áµ½Äں˵Äijһ²¿·ÖʱÓÖ»áÉæ¼°µ½ÆäËü¸ü¶àµÄÎļþ£¬µ±·µ»Øµ½ÔÀ´µÄµØ·½Ïë¼ÌÐøÍù϶Áʱ£¬ÓÖÍüÁËÔÀ´¶ÁµÄÄÚÈÝ¡£ÔÚinternetÉÏ£¬ºÜ¶àÈËΪ´Ë¸¶³öÁ˺ܴóµÄŬÁ¦£¬ÖÆ×÷³öÁËÔ´´úÂëµ¼º½Æ÷£ ......
À¥É½ÐùÔ¯Linux¿ª·ÅʵÑéÊÒ
¼ò½é
Ϊ·½±ã¹ã´óLinuxÈí¼þ¿ª·¢Õߣ¬ÐùÔ¯¸ß¶ËITÅàѵÖÐÐÄÓÚ2009Äê10ÔÂÉèÁ¢ÁËLinux¿ª·ÅʵÑéÊÒ£¬ÐùÔ¯Linux¿ª·ÅʵÑéÊÒÌṩÁËÍêÕûµÄLinux Èí¼þ¿ª·¢»·¾³£¬°üÀ¨£ºC/C++£¨GCC¡¢GDB£©¡¢make¡¢Java¡¢Python¡¢Perl¡¢C++ Boost¡¢C++ ACE¡¢C++ OTL¡¢Oracle¡¢M ......
ÒýÓÃhttp://hi.baidu.com/tim_bi/blog/item/f1038ed6e3399d2707088bb3.html
2009-02-28 22:58
×î½ü½ÓµÄÏîÄ¿ÊÇÄ£Äâ¶à¸ö
socket
¿Í»§¶ËÓë·þÎñÆ÷½øÐÐͨÐÅ¡£ÓÉÓÚ
Linux
ϵͳµÄÏÞÖÆ£¬ÔÚ
linux/include/linux/posix_types.h
ÎļþÖÐÓÐÈçϵĺ궨Ò壺
#undef __FD_SETSIZE
#define __FD_SETSIZE
1024
Õâ¸öºêÊ ......