¹ØÓÚLinux²Ù×÷ϵͳϱðÃûµÄÉèÖÃ
linuxϵͳ¿ÉÒÔ°ÑһЩ³£ÓõÄÃüÁî×öÒ»¸ö¼ò¶ÌµÄ±ðÃû
alias tomcat£½"cd /usr/local/tomcat",µ«ÊÇÍ˳öϵͳºóÕâЩ±ðÃû¾ÍʧЧÁË£¬ÈçºÎ°Ñ±ðÃûдÈëÅäÖÃÎļþ£º
Ê×ÏÈÕÒµ½µÇ½µÄÓû§µÄÎļþ¼Ð£¬±ÈÈçROOTµÇ½µÄʱºò£¬ÔÚ/Ŀ¼Ï½øÈëROOTĿ¼±à¼.bash_profileÎļþ
±ÈÈç¿ÉÒÔÕâÑù±à¼£¨alias ÕâÁ½ÐÐÊǼÓÉÏÈ¥µÄ£©£¬µ±È»£¬ÏµÍ³µÄ»·¾³±äÁ¿Ò²ÊÇ¿ÉÒÔдÔÚÕâÀïµÄ
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
alias tomcat="cd /usr/local/tomcat"
alias myip="/sbin/ifconfig | grep -a 'inet addr' | sed -e '/127\\.0\\.0\\.1/d;s/.*inet addr:\\([0-9\\.]\\+\\).*/\\1/'"
# User specific environment and startup programs
PATH=$PATH:$HOME/bin
export PATH
unset USERNAME
ÔÚ±à¼.bash_profileÎļþºóÁ¢¼´ÉúЧµÄÃüÁî
source .bash_profile
Ïà¹ØÎĵµ£º
1. LinuxÄÚºËipv4ÍøÂ粿·Ö·Ö²ã½á¹¹£º
BSD socket²ã£º ÕâÒ»²¿·Ö´¦ÀíBSD socketÏà¹Ø²Ù×÷£¬Ã¿¸ösocketÔÚÄÚºËÖÐÒÔstruct socket½á¹¹ÌåÏÖ¡£ÕâÒ»²¿·ÖµÄÎļþ
Ö÷ÒªÓУº/net/socket.c /net/protocols.c etc
INET socket²ã£ºBSD socketÊǸö¿ÉÒÔÓÃÓÚ¸÷ÖÖÍøÂçÐÒéµÄ½Ó¿Ú£¬¶øµ±ÓÃÓÚtcp/ip£¬¼´½¨Á¢ÁËAF_INETÐÎʽµÄsocketʱ ......
¹Ø»úºÍÖØÆôÔÚLinux KernelÖеÄÄÄЩº¯ÊýÀïʵÏÖ¡£
rebootµÄ×îÖÕʵÏÖÔÚarch_reset()º¯Êý£¬Ëüͨ³£¶¨ÒåÔÚarch/arm/mach-xxx/include/mach/system.hÀï¡£system.h±»ARM kernelµÄpublic codeÓ¦Óã¬Òò´ËÄãÐèÒª¶¨ÒåÕâ¸öÍ·Îļþ£¬²¢ÊµÏÖËü¡£
arch_resetµÄº¯ÊýÔÐÍΪ
void arch_reset(char mode)
void arch_reset(char mode)& ......
Linuxϲ鿴°æ±¾ºÅµÄÃüÁî
1£¬²é¿´Äں˰汾ÃüÁ
cat /proc/version
uname -a
uname -rcat /etc/issue
man uname
2£¬²é¿´linux°æ±¾£º³Â¼ÈçÏ£º
1) µÇ¼µ½·þÎñÆ÷Ö´ÐÐ lsb_release -a £¬¼´¿ÉÁгöËùÓа汾ÐÅÏ¢£¬ÀýÈ磺
[root@3.5.5Biz-46 ~]# lsb ......
LINUX, ¾Ñé×ܽá, ²ËÄñ, ÈýÈËÐÐ, ѧϰ
Ò»¡¢LINUX½éÉÜ
Linux£ºLinuxÊÇÓÉ·ÒÀ¼´óѧµÄLinus TorvaldÀî納˹·¢Æð´´½¨µÄ¿ªÔ´Èí¼þÏîÄ¿¡£
°æ±¾ºÅxx.yy.zz £º¢Ù.xx±íΪÖ÷°æ±¾ºÅ£¬yyΪ´Î°æ±¾ºÅ£¬zzΪÐÞ¶©µÄ°æ±¾ºÅ¡£¢Ú.´Î°æ±¾ºÅÖУ¬µ¥Êý´ú±í²âÊ԰棬˫Êý´ú±íÕýʽ·¢Ðаæ
¿ªÔ´Èí¼þ£º¢ÙÔ´´úÂ뿪·Å¡£
¢ÚGPLÐÒ飺Ö÷ÒªÊÇÒÔÔ´´ú ......
֮ǰ¿´ÁË¡¶Ð±¬Äں˸ßΣ©¶´sock_sendpageµÄÀûÓ÷ÖÎöµÄÌÖÂÛ
¡·ÕâÆªÌû×Ó£¬ÔھżúÐÖºÍÖîλCUerµÄÖ¸ÒýÏ£¬´óÖÂŪÇåÁËÕû¸ö©¶´µÄʼĩ¡£ÏÖÓë´ó¼Ò·ÖÏí£¨ÒýÓÃ×ÔÎҵĿռä
£©¡£
ÓÐʲô²»×ãÖ®´¦»¹Íû¶à¶àÖ¸½Ì~
Äں˵ÄBUG
Õâ¸öBUGÊ×ÏȵôÓsendfileϵͳµ÷ÓÃ˵Æð¡£
¿¼Âǽ«Ò»¸ö±¾µØÎļþͨ¹ýsocket·¢ËͳöÈ¥µÄÎÊÌâ¡£ÎÒÃÇͨ³£µÄ×ö·¨ÊÇ£º ......