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 linuxµÄ/etcÏÂÃæµÄprofileÎļþ¼Ç¼ÁËһЩËùÓÐÓû§¹«ÓõĻ·¾³±äÁ¿£¬rc.local¼Ç¼Óû§µÇ½µÄʱºòÒªÖ´ÐеÄshellÃüÁî¡£¸÷¸öÓû§µÄhomeĿ¼ÏÂÒ²ÓÐ.bashprofileÓÃÓÚÅäÖÃÓû§×Ô¼ºµÄ»·¾³±äÁ¿,.bashrcÓû§µÇ½µÄʱºòÖ´ÐеÄÃüÁî¡£
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±¾ÎÄÖмÙÉèinittabÖÐÉèÖõÄinit treeΪ£º
/etc/rc.d/rc0.d
/etc/rc.d/rc1.d
/etc/rc.d/rc2.d
/etc/rc.d/rc3.d
/etc/rc.d/rc4.d
/etc/rc.d/rc5.d
/etc/rc.d/rc6.d
/etc/rc.d/init.d
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1. ¹ØÓÚlinuxµÄÆô¶¯
2. ¹ØÓÚrc.d
3. Æô¶¯½Å±¾Ê¾Àý
4. ¹ØÓÚrc.local
5. ¹ØÓÚbashÆô¶¯½Å±¾
6. ¹ØÓÚ¿ª»ú³ÌÐòµÄ×Ô¶¯Æô¶¯
1. ¹ØÓÚlinuxµÄÆô¶¯
initÊÇËùÓнø³ÌµÄ¶¥²ã
init¶ÁÈ¡/etc/inittab£¬Ö´ÐÐrc.sysinit½Å±¾
(×¢ÒâÎļþÃûÊDz»Ò»¶¨µÄ,ÓÐЩunixÉõÖÁ»á½«Óï¾äÖ±½ÓдÔÚinittabÖÐ)
rc.sysinit½Å±¾×÷Á˺ܶ๤×÷:
init $PATH
config network
start swap function
set hostname
check root file system, repair if needed
check root space
....
rc.sysinit¸ù¾ÝinittabÖ´ÐÐrc?.d½Å±¾
linuxÊǶàÓû§ÏµÍ³£¬gettyÊǶàÓû§Óëµ¥Óû§µÄ·ÖË®Áë
ÔÚgetty֮ǰÔËÐеÄÊÇϵͳ½Å±¾
2. ¹ØÓÚrc.d
ËùÓÐÆô¶¯½Å±¾·ÅÖÃÔÚ /etc/rc.d/init.dÏÂ
rc?.dÖзÅÖõÄÊÇinit.dÖнű¾µÄÁ´½Ó£¬ÃüÃû¸ñʽÊÇ:
S{number}{name}
K{number}{name}
S¿ªÊ¼µÄÎļþÏò½Å±¾´«µÝstart²ÎÊý
K¿ªÊ¼µÄÎļþÏò½Å±¾´«µÝstop²ÎÊý
number¾ö¶¨Ö´ÐеÄ˳Ðò
3. Æô¶¯½Å±¾Ê¾Àý
ÕâÊÇÒ»¸öÓÃÀ´Æô¶¯httpdµÄ /etc/rc.d/init.d/apache ½Å±¾£º
´úÂë:
#!/bin/bash
......
¿ÉÒÔ¿´³öËû½ÓÊÜstart,stop,restart,status²ÎÊý
È»ºó¿ÉÒÔÕâÑù½¨Á¢rc?.dµÄÁ´½Ó£º
´úÂë:
cd /etc/rc.d/init.d &&
ln -sf ../init.d/apache ../rc0.d/K28apache &&
ln -sf ../init.d/apache ../rc1.d/K28apache &&
ln -sf ../init.d/apache ../rc2.d/K28apache &&
ln -sf ../init.d/apache ../rc3.d/S32apache &&
ln -sf ../init.d/apache ../rc4.d/S32apache &&
ln -sf ../init.d/apache ../rc5.d/S32apache &&
ln -sf ../init.d/apache ../rc6.d/K28apache
4. ¹ØÓÚrc.local
¾­³£Ê¹ÓÃµÄ rc.local ÔòÍêÈ«ÊÇÏ°¹ßÎÊÌ⣬²»ÊDZê×¼¡£
¸÷¸ö·¢ÐаæÓв»Í¬µÄʵÏÖ·½·¨£¬¿ÉÒÔÕâÑùʵÏÖ£º
´úÂë:
touch /etc/rc.d/rc.local
chmod +x /etc/rc.d/rc.local
ln -sf