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1¡¢mkdir ½¨Á¢ÐÂĿ¼Ãû    ¼Ó“." ÔÚĿ¼ÃûǰΪÒþ²ØÄ¿Â¼£¨ls -a¿É²é¿´£©
     rm -rf Ŀ¼Ãû   ɾ³ýĿ¼¼°×ÓĿ¼  rm -- -eeɾ³ý-eeÎļþ  »òÕß rm "ÎļþÃû"

2¡¢mv ÀÏÎļþÃû ÐÂÎļþÃû   ¸Ä±äÎļþ/Ŀ¼Ãû×Ö
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3¡¢halt  ¹Ø»ú   reboot ÖØÆð
4¡¢mount (-t iso9660) /dev/cdrom /mnt/cdrom À¨ºÅÀïΪָ¶¨ÎļþÀàÐÍ£¬Ò»°ã¿É²»Óã¬linuxÒ»°ã»á×Ô¶¯Ê¶±ðÎļþÀàÐÍ
     umount /mnt/cdrom »ò umount /dev/cdrom  ÔÚÈ¡³ö¹âÅÌ»òÈíÅÌʱ£¬±ØÐëÏÈÔËÐÐÕâÌõÖ¸Áî
5¡¢¹ÜµÀÃüÁ
      “|”   ls /dev | more /devĿ¼µÄÎļþÒ»Ò³²»ÄÜÏÔʾÍ꣬more¿ÉÒÔ¶àÒ³ÏÔʾÍê
      ÓÃÎļþ¼Ç¼ls /dev µÄËùÓнá¹û
     ls /dev >file.txt   Ŀ¼ÀïûÓÐfile.txt Ôò»á´´½¨Ò»¸öfile.txtÎļþ£¬Ä¿Â¼ÀïÓеϰÔò»á¸²¸Çfile.txt
     ls /dev >>file.txt ÎÞÔò´´½¨  ÓÐÔòÔÚÎļþºóÃæ×·¼ÓÄÚÈÝ
     cat >>friends <<"EOF"  °Ñ½ÓÏÂÀ´ÊäÈëµÄÄÚÈݱ£´æµ½friendsÎļþÀïÃæ¡£ ÊäÈë“EOF”ʱ½áÊø
     << ¾ÍÊÇÏòÇ°ÃæµÄÃüÁî´«ËÍÒ»¸öÊý¾Ý
6  ¡¢cd ..¿É½øÈëÉÏÒ»²ãĿ¼ 
¡¡¡¡cd -¿É½øÈëÉÏÒ»¸ö½øÈëµÄĿ¼ 
¡¡¡¡cd ~¿É½øÈëÓû§µÄhomeĿ¼  
7¡¢echo  env grep 
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8¡¢   ½ø³ÌÏà¹Ø£º
ps -A |grep comm  ÏÔʾËùÓÐÔËÐеĽø³Ì ¼ìË÷ÊÇ·ñÓÐÎÒÃÇÖ¸¶¨µÄcommÔËÐÐ
top:ÏÔʾϵͳµÄ×î¸ß½ø³Ì¡£ »¹ÓÐ  cpuµÄʹÓÃÇé¿ö¡¢Õ¼ÓÃÄÚ´æµÄ´óС¡¢ÔËÐÐʱ¼äµÈ
kill 
9¡¢   lynx www.google.com ×Ö·û½çÃæµÄÍøÂçä¯ÀÀÆ÷
chmod -R +wrx ÎļþÃû/Ŀ¼Ãû   ¸øÖ¸¶¨Îļþ/Ŀ¼¼ÓȨÏÞ
uname ²é¿´Äں˰汾
df  ¼ì²é´ÅÅÌÊ£Óà¿Õ¼ä
  du -m/-k   ²é¿´Îļþ´óС
10¡¢id:ÏÔʾÓû§µÄϵͳ±êÖ¾¡¢±¨¸æÓû§Ãû¡¢Óû§ºÅ£¨ID£©¡¢×éÃû¡¢×éºÅ£¨GID)
11¡¢ln [²ÎÊý] Ô´Îļþ Ä¿±êÎļþ   -d Ó²Á¬½Ó   -s  Ó÷ûºÅÁ´½Ó´úÌæÓ²Á´½Ó£¨ÈíÁ´½Ó£


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LINUX CVSÌí¼ÓÓû§shell

vi adduser.sh È»ºó°ÑÈçÏ´úÂëÌùÈë¡£±£´æµ½CVSROOTĿ¼Ï¡£
#!/bin/bash
#add cvs users
while [ -n "$(echo $1|grep '^_')"];
do
case $1 in
-u) param=$2
echo -e "$param:\c" >>passwd
shift ;;
-p) param=$2
echo -e `./passwdgen.pl $param`":cvsroot" >> passwd;;
*)
exit 1
esac
shift
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linux sock_rawԭʼÌ×½Ó×Ö±à³Ì

sock_rawԭʼÌ×½Ó×Ö±à³Ì¿ÉÒÔ½ÓÊÕµ½±¾»úÍø¿¨ÉϵÄÊý¾ÝÖ¡»òÕßÊý¾Ý°ü,¶ÔÓë¼àÌýÍøÂçµÄÁ÷Á¿ºÍ·ÖÎöÊǺÜÓÐ×÷ÓõÄ.Ò»¹²¿ÉÒÔÓÐ3ÖÖ·½Ê½´´½¨ÕâÖÖsocket
 
1.socket(AF_INET, SOCK_RAW, IPPROTO_TCP|IPPROTO_UDP|IPPROTO_ICMP)·¢ËͽÓÊÕipÊý¾Ý°ü
2.socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP|ETH_P_ARP|ETH_P_ALL))·¢ËͽÓÊÕÒÔÌ« ......

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1¡¢µ½www.sun.comÏÂÔØ×îа汾µÄj2sdk for linux
2¡¢°²×°jdk1.4.2 for linux,ÒÔÏÂÊÇÔÚRedhat Linux 9ÏÂΪÀý£º
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ÔÚLinuxÖÐʵÏÖ´óÈÝÁ¿ NAND FlashµÄYAFFS2Îļþϵͳ

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ÔÚLinux²Ù×÷ϵͳϽ¨Á¢DHCP·þÎñÆ÷

 
DHCPÊÇDynamic Host Configuration ProtocolµÄÓ¢ÎÄËõд£¬·­Òë¹ýÀ´¾ÍÊǶ¯Ì¬Ö÷»úÅäÖÃͨѶЭÒé¡£ËüµÄ¹¦ÄܾÍÊÇÎªÍøÂçÁ¬½Ó¶¯Ì¬·ÖÅäIPµØÖ·£¬ËüÔÊÐí¿Í»§¶Ë¼ÆËã»úÏòÍøÂç·þÎñÆ÷×Ô¶¯»ñÈ¡ÍøÂçÉèÖá£DHCP·þÎñÆ÷ʹµÃÍøÂç¹ÜÀíÔ±ÔÚ¹ÜÀíÍøÂçÖÐÔÚÍøÂçÖÐÔö¼Ó¡¢É¾³ýÍøÂç½Úµã»òÕßÖØÐÂÅäÖÃÍøÂçʱ£¬¹¤×÷±äµÃ·Ç³£¼òµ¥£¬ÎÞÐëÊÖ¹¤µÄ·ÖÅäIPµØÖ ......
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