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find ./ -type f -name "*.php" -exec grep -H 'search_string' {} ;
findÃüÁîµÄʹÓ÷½·¨ ÎÒ¿´ÒѾ­ÓÐÅóÓÑÌṩÁË ÏÖÔÚ˵Ï grepµÄʹÓ÷½·¨°É
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¡¡¡¡$ grep magic /usr/src//Documentation/*
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¡¡¡¡sysrq.txt£º* How do I enable the magic SysRQ key£¿
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LinuxÆô¶¯ÓÅ»¯

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¡¡¡¡1. ÀýÈ磺Ҫ°Ñsshd·þÎñÔÚµÚ3ÖÖÆô¶¯¼¶±ðÖÐÍ£Ö¹¡£
[root@team4 rc3.d]# chkconfig sshd --level 3 off ÖйúÍø¹ÜÁªÃËwww.bitscn.com
¡¡¡¡2. »¹¿ÉÒÔÊÖ¹¤Ð޸ģ¬ÔÚ/etc/rc.d/Õâ¸öĿ¼ÀïÓкܶ಻ͬrunlevel¶ÔÓ¦µÄĿ¼£¬ÀïÃæ±íÃ÷½øÈëij¸öÆô¶¯¼¶±ðʱҪÆô¶¯ºÍÍ£Ö¹ÄÇЩ·þÎñ¡£
 
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[root@team4 etc]# ls /etc/rc.d
init.d rc0.d rc2.d rc4.d rc6.d rc.sysinit
rc rc1.d rc3.d rc5.d rc.local
ÎÒÃÇÓÃrc3.dÕâ¸öĿ¼ΪÀý£¬Õâ¸öĿ¼ÀïÃæ¼Ç¼µÄÊǽøÈëinit 3ʱÐèҪֹͣºÍÆô¶¯ÄÇЩ·þÎñ¡£
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[root@team4 etc]# ls /etc/rc.d/rc3.d/
K02avahi-dnsconfd K89pand S25bluetooth
K02dhcdbd K89rdisc S25netfs
K02NetworkManager ......

Linux LVM µÄʹÓÃÏê½â

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Linux
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±ÈÈçPatition Magic
µÈ)
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ÄÜÐèÒªµÄÈÝÁ¿µÄ×î´óÖµ¡£ÒòΪÈç¹û¹À¼Æ²»×¼È·£¬µ±Óöµ½Ä³¸ö·ÖÇø²»¹»ÓÃʱ¹ÜÀíÔ±¿ÉÄÜÉõÖÁÒª±¸·ÝÕû¸öϵͳ¡¢Çå³ýÓ²ÅÌ¡¢ÖØÐ¶ÔÓ²ÅÌ·ÖÇø£¬È»ºó»Ö¸´Êý¾Ýµ½Ð·ÖÇø¡£
   
ËäÈ»ÏÖÔÚÓкܶද̬µ÷Õû´ÅÅ̵Ť¾ß¿ÉÒÔʹÓã¬ÀýÈçPartation Magic
µÈµÈ£¬µ«ÊÇËü²¢²»ÄÜÍêÈ«½â¾öÎÊÌ⣬ÒòΪij¸ö·ÖÇø¿ÉÄÜ»áÔٴα»ºÄ¾¡£»ÁíÍâÒ»¸ö·½ÃæÕâÐèÒªÖØÐÂÒýµ¼ÏµÍ³²ÅÄÜʵÏÖ£¬¶ÔÓÚºÜ¶à¹Ø¼üµÄ·þÎñÆ÷£¬Í£»úÊDz»¿É½ÓÊܵ ......

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[root@node1 ~]# free -m
total used free shared buffers cached
Mem: 8004 6557 1446 0 163 5630
-/+ buffers/cache: 763 7240
Swap: 1983 0 1983
°ÑÄÚ´æÀïµÄÊý¾ÝÔÝʱдµ½Ó²ÅÌÀï
[root@node1 ~]# sync
ÐÞ¸Ä /proc/sys/vm/drop_cachesÎļþ
[root@node1 ~]# echo 3 > /proc/sys/vm/drop_caches
[root@node1 ~]# cat /proc/sys/vm/drop_caches
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[root@node1 ~]# free -m
total used free shared buffers cached
Mem: 8004 631 7372 0 0 60
-/+ buffers/cache: 570 7433
Swap: 1983 0 1983
......

arm linux ¿ª·¢»·¾³´î½¨

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1. #yum install tftp
2. #yum install xinetd
3. #yum install tftp-server
4. #gedit /etc/xinetd.d/tftp
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# default: off
# description: The tftp server serves files using the trivial file transfer \
#   protocol.  The tftp protocol is often used to boot diskless \
#   workstations, download configuration files to network-aware printers, \
#   and to start the installation process for some operating systems.
service tftp
{
    disable = no
    socket_type     = dgram
    protocol        = udp
    wait            = yes
    user            = root
    server &nb ......

Ubuntu/LinuxÈëÃŽéÉÜ(04)

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    /   ¸ùĿ¼
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    ©Àboot/      Æô¶¯Îļþ¡£ËùÓÐÓëϵͳÆô¶¯ÓйصÄÎļþ¶¼±£´æÔÚÕâÀï
    ©¦    ©¸grub/   GrubÒýµ¼Æ÷Ïà¹ØµÄÎļþ
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    ©Àproc/      ÄÚºËÓë½ø³Ì¾µÏñ
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    ©Àmedia/   ¹ÒÔØÃ½ÌåÉ豸
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    ©Àroot/      rootÓû§µÄ$HOMEĿ¼
    ©Àhome/         
    ©¦    ©Àuser/   ÆÕͨÓû§µÄ$HOMEĿ ......
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