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 1¡¢´ò¿ªÖÕ¶Ë£¬Çл»µ½rootÓû§£¬ÊäÈ룺free -m²é¿´ÄÚ´æ×´Ì¬
[root@lxt lxt]# free -m
             total       used       free     shared    buffers     cached
Mem:           498        357        141          0         27        162
-/+ buffers/cache:        167        331
Swap:         1023          0       1023
2¡¢ÊäÈëdf -B M£¨»òdf -m£©²é¿´¸÷·ÖÇøµ±Ç°Ê¹ÓÃÇé¿ö
[root@lxt lxt]# df -B M
Îļþϵͳ               1M-¿é        ÒÑÓà    ¿ÉÓà ÒÑÓÃ% ¹ÒÔØµã
/dev/mapper/vg_lxt-lv_root
                        12875M     4059M     8162M  34% /
/dev/sda7                 194M       14M      170M   8% /boot
tmpfs                     250M        1M      249M   1% /dev/shm
£¨fdisk -l¿É²é¿´´ÅÅÌ·ÖÇøÇé¿ö£©
3¡¢Ñ¡ÔñÒ»¸ö½Ï´óµÄ·ÖÇø£¬½¨Á¢·ÖÇøÎļþ£º
[root@lxt lxt]# dd if=/dev/zero of=/swapadd bs=1024 co


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ʵսLinux Bluetooth±à³Ì£¨ËÄ£© L2CAP²ã±à³Ì

£¨L2CAPЭÒé¼ò½é£¬L2CAPÔÚBlueZÖеÄʵÏÖÒÔ¼°L2CAP±à³Ì½Ó¿Ú£©
Ò»£ºL2CAPЭÒé¼ò½é£º
Logical Link Control and Adaptation Protocol(L2CAP)
Âß¼­Á¬½Ó¿ØÖƺÍÊÊÅäЭÒé (L2CAP) ΪÉϲãЭÒéÌá¹©ÃæÏòÁ¬½ÓºÍÎÞÁ¬½ÓµÄÊý¾Ý·þÎñ£¬²¢Ìṩ¶àЭÒ鹦ÄܺͷָîÖØ×é²Ù×÷¡£L2CAP ³äÐíÉϲãЭÒéºÍÓ¦ÓÃÈí¼þ´«ÊäºÍ½ÓÊÕ×î´ó³¤¶ÈΪ 64K µÄ L2CAP Ê ......

ʵսLinux Bluetooth±à³Ì (Æß) SDPЭÒé

Service Discovery Protocol(SDP)ÌṩһÖÖÄÜÁ¦£¬ÈÃÓ¦ÓóÌÐòÓз½·¨·¢ÏÖÄÄÖÖ·þÎñ¿ÉÓÃÒÔ¼°ÕâÖÖ·þÎñµÄÌØÐÔ¡£
·þÎñ·¢ÏÖЭÒé(SDP»òBluetooth SDP)ÔÚÀ¶ÑÀЭÒéÕ»ÖжÔÀ¶ÑÀ»·¾³ÖеÄÓ¦ÓóÌÐòÓÐÌØÊâµÄº¬Ò⣬·¢ÏÖÄĸö·þÎñÊÇ¿ÉÓõĺÍÈ·¶¨ÕâЩ¿ÉÓ÷þÎñµÄÌØÕ÷¡£SDP¶¨ÒåÁËbluetooth client·¢ÏÖ¿ÉÓÃbluetooth server·þÎñºÍËüÃǵÄÌØÕ÷µÄ·½·¨¡£ ......

Linuxϲ鿴ϵͳÐÅÏ¢µÄ³£ÓÃÃüÁî

ÏÂÃæÕâЩÃüÁîÔÚRedHat & CentOSÏÂʹÓÃÓÐЧ£¬ÆäËûϵͳûÓбȽϹý
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#cat /proc/cpuinfo
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#grep "model name" /proc/cpuinfo
²é¿´ÄÚ´æ
#grep MemTotal /proc/meminfo
#free
²é¿´ÊÇ32»¹ÊÇ64λ
# ls / 
#Èç¹ûÓÐlib64»òÕâ¸öĿ¼,ÄDzÙ×÷ϵͳ¾ÍÊÇ64λµÄ
#getconf LONG_BIT ......

¹ØÓÚLinux²Ù×÷ϵͳFdisk¹¤¾ßµÄʹÓýéÉÜ

 LinuxϵÄfdisk¹¦ÄÜÊǼ«ÆäÇ¿´óµÄ£¬ÓÃËü¿ÉÒÔ»®·Ö³ö×ÔӵķÖÇø£¬ÏÂÃæ¼òÒª½éÉÜÒ»ÏÂËüµÄÓ÷¨£º
¶ÔÓÚIDEÓ²ÅÌ£¬Ã¿¿éÅÌÓÐÒ»¸öÉ豸Ãû£º¶ÔÓ¦ÓÚÖ÷°åµÄËĸöIDE½Ó¿Ú£¬É豸ÃûÒÀ´ÎΪ£º/dev /hda,/dev/hdb,/dev/hdc,/dev/hddµÈ£¬Èç¹û»¹ÓÐIDE Raid¿¨£¬ÔòÒÀ ´ÎΪ£º/dev/hde,/dev/hdf,/dev/hdg,/dev/hdh¡£¶ÔÓÚSCSIÓ²ÅÌ£¬ÔòÉ豸ÃûÒÀ´Î ......

LinuxÉÏÈçºÎ°²×° src.rpmÎļþ

 
°²×°.src.rpm
ÓÐЩÈí¼þ°üÊÇÒÔ.src.rpm½áβµÄ£¬ÕâÀàÈí¼þ°üÊǰüº¬ÁËÔ´´úÂëµÄrpm°ü£¬ÔÚ°²×°Ê±ÐèÒª½øÐбàÒë¡£ÕâÀàÈí¼þ°üÓÐÁ½ÖÖ°²×°·½·¨£º
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1.¡¡Ö´ÐÐrpm -i your-package.src.rpm
2.¡¡cd /usr/src/redhat/SPECS
3.¡¡rpmbuild -bp your-package.specs Ò»¸öºÍÄãµÄÈí¼þ°üͬÃûµÄspecsÎļþ
4.¡¡cd /usr/sr ......
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