LinuxÏ·ÉÐÅ
#!/bin/sh
# define default value
URL='https://fetionapi.appspot.com/api/'
# your phone number
from='13600000000'
# your fetion password
PW='password'
# send sms to ...
TO=$from
# message
MSG=''
case $# in
1
) MSG=$
1
;;
2
) MSG=$
2
TO=$1
;;
3
) from=$
1
PW=$2
TO=$from
MSG=$3
;;
4
) from=$
1
PW=$2
TO=$3
MSG=$4
;;
*) echo "usage: $0 [from pw] [to] msg."
exit 1
;;
esac
result=`curl -d "from=$from"
-d
"pw=$PW"
-d
"to=$TO"
-d
"msg=$MSG"
"$URL"
2
>/dev/null`
case `echo $r
Ïà¹ØÎĵµ£º
¡¡Ò»¡¢ÒýÑÔ
¡¡¡¡ÏëʹÓÃLinuxÒѾºÜ³¤Ê±¼äÁË£¬ÓÉÓÚûÓÐÓ²ÐÔÈÎÎñһֱҲûÓÐϵͳѧϰ£¬½üÈÕÓÉÓÚ¹¤×÷ÐèÒª±ØÐëʹÓÃLinuxϵÄMySQL¡£±¾ÒÔΪÓÐ
WindowsÏÂʹÓÃSQL
ServerµÄ¾Ñ飬¾õµÃÔÚLinuxϰ²×°MySqlÓ¦¸ÃÊÇÒ×Èç·´ÕÆµÄÊ£¬¿ÉÔÚÕæÕý°²×°ºÍʹÓÃMySQLʱ×ßÁ˺ܶàÍä·£¬Óö¼ûºÜ¶àÎÊÌ⣬±Ï¾¹Linux
ºÍWindows±¾Éí¾ÍÓкܴóÇø±ð¡£ÎªÁËÈà ......
ÕâÀïÖ»Áоټ¸¸ö±È½ÏÂé·³µÄÊý¾Ý½á¹¹
struct list_head {
struct list_head *next, *prev;
} //linuxͨÓõÄË«ÏòÁ´¶ÓÁУ¬ÏÂÃæ¶à´¦Óõ½£¬ÕâÀïÁгöÔ´´úÂë
linux¶ÔÄÚ´æÔÙÓÃҳʽ¹ÜÀí£¬¶ÔÓÚÒ³£¬¾ÍÓиöÊý¾Ý½á¹¹page¼ÓÒÔÃèÊö¡£ÔÚÄÚºËÖÐÓиöÈ«¾ÖÁ¿mem-mapÖ¸ÏòµÄÊÇÒ»¸öpageµÄÊý×飬Õû¸öÊý×éÃèÊöÁËÕû¸öÎïÀíÄڴ棬 ......
ÒÔÏÂÖ÷ÒªÊÕ¼¯ linux Öг£ÓõÄÃüÁî.ÒÔºó»áÂ½ÐøÔö¼Ó
¸´ÖÆÎļþ¼Ð¼°ÆäÏÂÎļþ: cp smdk2440 -r mini2440
ɾ³ýÎļþ¼Ð¼°ÆäÏÂÎļþ: rm -rf mini2440
²éÕÒ°üº¬¹Ø¼ü×ÖµÄÎļþ:
grep "CONFIG_S3C2410" * -R //²éÕÒ°üº¬"CONFIG_S3C2410" µÄÎļþ,
*±íʾ²éÕÒ µ±Ç°Ä¿Â¼ÏµÄËùÓÐÎļþ, -R ±íʾµÝ¹é²éÕÒ ......
http://blog.chinaunix.net/u/9861/showart_1890675.html
LinuxÖеÄ"Á㿽±´"ÆÊÎö
Zero Copy I: User-Mode Perspective
Author By Dragan Stancevic
Translated By Love. Katherine
(½âÊÍLinuxÖеÄ"Á㿽±´"ÌØÐÔ£¬ÎªÊ²Ã´ÓÐÓÃÒÔ¼°ºÎ´¦ÐèÒª¸Ä½øÖ®´¦)
Èç½ñ¼¸ºõÿ¸öÈ˶¼Ìý˵¹ýLinuxÖÐËùνµÄ"Á㿽±´"ÌØÐÔ£¬È»¶øÎÒ¾ ......
ÔÚѧϰ Linux® µÄ¹ý³ÌÖУ¬ÄúÒ²Ðí½Ó´¥¹ý²¢·¢£¨concurrency£©¡¢ÁÙ½ç¶Î£¨critical
section£©ºÍËø¶¨£¬µ«ÊÇÈçºÎÔÚÄÚºËÖÐʹÓÃÕâЩ¸ÅÄîÄØ£¿±¾ÎÄÌÖÂÛÁË 2.6 °æÄÚºËÖпÉÓõÄ
Ëø¶¨»úÖÆ£¬°üÀ¨Ô×ÓÔËËã·û£¨atomic operator£©¡¢×ÔÐýËø£¨spinlock£©¡¢¶Á/Ð´Ëø£¨
reader/writer lock£©ºÍÄÚºËÐźÅÁ¿£¨kernel semaphore£©¡£ ±¾ÎÄ»¹Ì½Ì ......