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GCC±àÒ빤¾ßÔÚRed Hat/Fedora Core·¢ÐаæÖÐĬÈÏÒѾ­°²×°£¬Òò´Ë²»ÐèÒªÔÙ°²×°¡£ÔÚUbuntu·¢ÐаæÖУ¬´ò¿ªshell£¬Ê¹ÓÃÏÂÃæµÄÃüÁî¿ÉÒÔ·½±ãµÄ°²×°GCC±àÒëÆ÷(\$ΪÃüÁîÐÐÌáʾ·û)£º
¡¡¡¡$ sudo apt-get install build-essential
¡¡¡¡¸ÃÃüÁî¿ÉÒÔ°ÑËùÐèÒªgcc¡¢g++±àÒëÆ÷ºÍmake¹¤¾ß¼°ÆäÒÀÀµµÄÆäËüÈí¼þ°ü×Ô¶¯°²×°²¢ÅäÖúá£
     $ sudo apt-get install g77 f77 gfortran
¡¡¡¡¸ÃÃüÁî¿ÉÒÔ°ÑFortran 77±àÒëÆ÷¼°Fortran95±àÒëÆ÷¼°ÆäÒÀÀµµÄÈí¼þ°ü×Ô¶¯°²×°²¢ÅäÖúá£
     $ sudo apt-get install gdb
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ʵսLinux Bluetooth±à³Ì(Áù) L2CAP±à³ÌʵÀý

ÀýÒ»£º·¢ËÍSignaling Packet£º
Signaling CommandÊÇ2¸öBluetoothʵÌåÖ®¼äµÄL2CAP²ãÃüÁî´«Êä¡£ËùÒÔµÃSignaling CommandʹÓÃCID 0x0001.
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 Èç¹ûÒªÖ±½Ó·¢ËÍSignaling Command.ÐèÒª½¨Á¢SOCK_RAWÀàÐ͵ÄL2CAPÁ¬½ÓSocket¡£ÕâÑù²ÅÓлú»á×Ô¼ºÌî³äCommand Code£¬Identi ......

LinuxÓû§Óë×é¹ÜÀí

1. Ôö¼ÓÓû§Õʺŗ—useradd / adduser
ÔÚÃüÁîÐÐÏÂʹÓà useradd ÃüÁ 
useradd Óû§Ãû 
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1£©ÔÚ /etc/passwd ÎļþÖÐÔöÌíÁËÒ»ÐмǼ£»
2£©ÔÚ /home Ŀ¼Ï´´½¨ÐÂÓû§µÄÖ÷Ŀ¼£¬²¢½« /etc/skel Ŀ¼(skeleton:.bashrc, .bash_history, etc.)ÖеÄÎļþ¿½±´µ½¸ÃĿ¼ÖÐÈ¥£»µ«ÊÇÊ ......

LinuxÏÂgrepʹÓÃÏêϸ½éÉÜ


1. grep¼ò½é
grep £¨global search regular expression(RE) and print out the line,È«ÃæËÑË÷ÕýÔò±í´ïʽ²¢°ÑÐдòÓ¡³öÀ´£©ÊÇÒ»ÖÖÇ¿´óµÄÎı¾ËÑË÷¹¤¾ß£¬ËüÄÜʹÓÃÕýÔò±í´ïʽËÑË÷Îı¾£¬²¢°ÑÆ¥ÅäµÄÐдòÓ¡³öÀ´¡£UnixµÄgrep¼Ò×å°ü À¨grep¡¢egrepºÍfgrep¡£egrepºÍfgrepµÄÃüÁîÖ»¸úgrepÓкÜС²»Í¬¡£egrepÊÇgrepµÄÀ©Õ¹£¬Ö§³Ö¸ü¶ ......

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¡¡¡¡³õÓÃLinuxʱ¿ÉÄÜÓд¦´¦²»·½±ã¸Ð¾õ, ¿ÉÊǵÈʹÓöÎʱ¼äÕÆ¿ØÁËЩÇÏÃż¼Çɺó¾Í»á¸Ðµ½Ô½À´Ô½Ë³ÊÖÁË
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How to interpret a Linux core dump file


Symptom:
 
This technote provides information on how to interpret a Linux core
dump file when an application running on the system, terminates
unexpectedly, due to a segmentation fault and generates a core file.
 
Reason for the problem:
 
A segmentation fault generally occu ......
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