Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Linux Ϲ²ÏíÄڴ潨Á¢Ê±ÐèҪעÒâµÄÎÊÌâ

ÔÚlinuxÏÂʹÓù²ÏíÄÚ´æÊ±£¬ÕÕ×ÅÊéÉÏ»òÕßÍøÉϵķ½·¨£¬Ê¹ÓÃshmatº¯Êýʱ£¬ÀÏÊÇ»áÅöµ½Ò»¸öÎÊÌâ
Ìáʾ:
shmat error
permission denied
ÿ´ÎÐèÒªsudoһϲÅÄܹ»Õý³£ÔËÐУ¬²¢ÇÒÈç¹ûÆÕͨÓû§Ê¹ÓÃipcs²é¿´µÄ»°£¬ÊÇ¿´²»¼ûÒѾ­·ÖÅäµÄ¹²ÏíÄÚ´æµÄ£¬ÐèÒªÔÚrootÓû§Ï²ÅÄÜ¿´¼û£¬ ×ʼÒÔΪÊÇshmatÐèÒªrootÓû§µÄȨÏÞ£¬ºóÀ´·¢ÏÖ²»ÊÇÕâÑù¡£
Ôì³ÉÕâ¸öÎÊÌâµÄ³ÉÒòÊÇÔÚʹÓÃshgetµÄʱºò£¬Ã»Óи³ÓÚ¿ª±ÙµÄ¹²ÏíÄÚ´æ¶ÔÓ¦µÄ¶ÁдȨÏÞ¡£
shgetº¯ÊýÔ­ÐÍÈçÏÂ
int shmget( key_t shmkey , int shmsiz , int flag );
×¢Òâ×îºóÒ»¸öÐβΠflag£¬±íʾµ±Ç°ÄÚ´æµÄģʽ
(mode)ÒÔ¼°È¨ÏÞ±êʶ¡£
¿ÉÒÔÈ¡ÈçϵÄÖµ
ģʽ¿ÉÈ¡ÈçÏÂÖµ£º н¨£ºIPC_CREAT
Èç¹û±êʶ·ûÒÔ´æÔÚ£¬Ôò·µ»Ø´íÎóÖµ£ºIPC_EXCL
È»ºó½«“ģʽ” ºÍ“ȨÏÞ±êʶ”½øÐГ»ò”ÔËË㣬×öΪµÚÈý¸ö²ÎÊý¡£
È磺 IPC_CREAT | IPC_EXCL | 0666
¼´
shmid = shmget( shmkey , sizeof(in_data) , IPC_CREAT |
0666 ) ;
ÕâÑù£¬Ò»ÇÐok. ²»ÐèÒªrootȨÏÞ£¬ÓÃipcsÒ²ÄÜ¿´µ½µ±Ç°Óû§½¨Á¢µÄ¹²ÏíÄÚ´æÐÅÏ¢


Ïà¹ØÎĵµ£º

linux ƽ̨ӦÓóÌÐòÔõôÑùͨ¹ýUSB¿ØÖÆ

£¨1£©Óû§Ä£Ê½USB
      usbfsÐéÄâÎļþϵͳÔÊÐí´ÓÓû§¿Õ¼äÒÔԭʼ·½Ê½·ÃÎÊUSBÉ豸¡£usbfsͨ³£¹ÒÔØÔÚ/proc/bus/usb/ÉÏ£¬usbfsÊ÷°üº¬ÁËϵͳÖÐÓëÿ¸öUSB¿ØÖÆÆ÷£¨»ò×ÜÏߣ©¶ÔÓ¦µÄĿ¼£¬Ã¿¸öĿ¼ÒÀ´Î°üº¬ÁËÓë¸Ã×ÜÏßÉϵÄUSBÉ豸Ïà¶ÔÓ¦µÄ½áµã¡£
      ΪÁ˸üºÃµØÀí½âusbfs£¬ÎÒà ......

linux½ø³Ì״̬dzÎö

ÖÚËùÖÜÖª£¬ÏÖÔڵķÖʱ²Ù×÷ϵͳÄܹ»ÔÚÒ»¸öCPUÉÏÔËÐжà¸ö³ÌÐò£¬ÈÃÕâЩ³ÌÐò±íÃæÉÏ¿´ÆðÀ´ÊÇÔÚͬʱÔËÐеġ£linux¾ÍÊÇÕâÑùµÄÒ»¸ö²Ù×÷ϵͳ¡£
¡¡¡¡ÔÚlinuxϵͳÖУ¬Ã¿¸ö±»ÔËÐеijÌÐòʵÀý¶ÔÓ¦Ò»¸ö»ò¶à¸ö½ø³Ì¡£linuxÄÚºËÐèÒª¶ÔÕâЩ½ø³Ì½øÐйÜÀí£¬ÒÔʹËüÃÇÔÚϵͳÖГͬʱ”ÔËÐС£
linuxÄں˶Խø³ÌµÄÕâÖÖ¹ÜÀí·ÖÁ½¸ö·½Ã棺½ø ......

linux ¶¨Ê±ÈÎÎñ crontabµÄÓ÷¨

crontabµÄÓ÷¨---linux¶¨Ê±ÈÎÎñ
2008Äê07ÔÂ30ÈÕ ÐÇÆÚÈý ÏÂÎç 01:00
crontabµÄÓ÷¨---linux¶¨Ê±ÈÎÎñ
Step 1:
    ʹÓÃÃüÁîcrontab
-e±à¼­Ò»¸ö¶¨Ê±Ö´ÐеÄÈÎÎñ»òÔÚ/var/spool/cron/crontabsĿ¼ÏÂн¨Ò»¸öÓë×Ô¼ºÓû§ÃûÏàͬµÄÈÎÎñ.
    ¼´:
   
#ÿ¸ôÒ»·ÖÖÓÖ´ÐÐÒ»´Îº ......

ÎÒµÄlinuxÎÊÌâ


 »ÝÆÕ·þÎñÆ÷Íø¿¨ÎÊÌ⣬¾Ý˵ÊÇ»º³å³ØÒÑÂú£¬¿ÉÒÔÓÃÁ½ÕŹâÅÌÐÞ¸´£¬²Î¿¼Ï±ߵÄ×ÊÁÏ
 
1.  Firmware Maintenance CD 8.70£¨ÏÂÔØºó¿Ì¼ѹËõ°üÄÚµÄISOΪÒýµ¼ÅÌÒýµ¼ÖØÆô·þÎñÆ÷£©
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en&cc=us&prodTyp ......

RedHat Linux AS5 LAMPÏêϸÅäÖÃ

Apache ÊÇÊÀ½çÅÅÃûµÚÒ»µÄWeb ·þÎñÆ÷, ¸ù¾ÝNetcrafËù×÷µÄµ÷²é,ÊÀ½çÉϰٷÖÖ®ÎåÊ®ÒÔÉ쵀 Web ·þÎñÆ÷ÔÚʹÓà Apache¡£ ÓÈÆäÊÇÏÖÔÚ£¬Ê¹Óà LAMP£¨Linux + Apache + MySQL + PHP£©À´´î½¨Öеȼ¶±ðµÄÓ¦ÓÃÒѾ­ÊÇÒ»ÖÖÁ÷Ðеķ½Ê½£¬Òò´Ë£¬ÕÆÎÕ Apache µÄÅäÖÃÊÇϵͳ¹¤³Ìʦ±Ø±¸µÄ¼¼ÄÜÖ®Ò»¡£ ʹÓà LAMP£¨Linux + Apache + MySQL + PHP£©À´´î½ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ