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#Default runlevel.The runlevels used by RHS are:
# 0-halt(Do NOT set initdefault to this)
# 1 -Single user mode
# 2-Multiuser,without NFS(The same as 3,if you do not have networking)
# 3-Full multiuser mode   
# 4-unused
# 5-X11                  
# 6-reboot(Do NOT set initdefault to this)
#
¸÷¸öÔËÐм¶µÄÏêϸ½âÊÍ£º 
 
0£ºÍ£»ú£¨¼Çס²»Òª°Ñinitdefault ÉèÖÃΪ0£¬ÒòΪÕâÑù»áʹLinuxÎÞ·¨Æô¶¯£©
1£ºµ¥Óû§Ä£Ê½£¬¾ÍÏñWin9Xϵݲȫģʽ¡£
2£º¶àÓû§£¬µ«ÊÇûÓÐ NFS ¡£
3£ºÍêÈ«¶àÓû§Ä£Ê½£¬±ê×¼µÄÔËÐм¶¡£
4£ºÒ»°ã²»Óã¬ÔÚÒ»Ð©ÌØÊâÇé¿öÏ¿ÉÒÔÓÃËüÀ´×öһЩÊÂÇé¡£ÀýÈçÔڱʼDZ¾µçÄÔµÄµç³ØÓþ¡Ê±£¬¿ÉÒÔÇл»µ½Õâ¸öģʽÀ´×öһЩÉèÖá£
5£ºX11£¬¼´½øµ½ X-Window ϵͳ¡£
6£ºÖØÐÂÆô¶¯ £¨¼Çס²»Òª°Ñinitdefault ÉèÖÃΪ6£¬ÒòΪÕâÑù»áʹLinux²»¶ÏµØÖØÐÂÆô¶¯£©¡£
Æô¶¯Ê±µÄÔËÐм¶ÊÇ5,Ò²¾ÍÊÇͼÐΠģʽ,¸Ä³É3¾ÍÊÇÎı¾Ä£Ê½ÁË¡£


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LinuxÄÚºËÅäÖÃÎĵµ(make menuconfig)

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    ±¾ÎĵµµÄÄÚÈݴ󲿷ÝÄÚÈݶ¼ÊÇ´ÓÍøÉÏÊÕ¼¯¶øÀ´£¬È»ºóÅäºÏһЩеĽØÍ¼£¨Äں˰汾£ºV2.4.19£©¡£ÔÚÿһÅäÖÃÏîºó»áÓÐÒ»¸öÑ¡ÔñÖ¸ÄϵIJ¿·Ý£¬ÓÃÀ´Ö¸µ¼´ó¼ÒÔõôÑù¸ù¾Ý×Ô¼ºµÄÇé¿öÀ´×öÏàÓ¦µÄÑ¡Ôñ£»»¹ÓÐÔÚÿһ¸ö´óÏîºÍÎĵµµÄ×îºó»áÓÐÒ»¸ö¾­Ñé̸£¬ËüÊÇһЩ¸ßÊÖÃÇÔÚÓ¦¶ÔÎÊÌâºÍ´¦ÀíÌØÓÐÓ²¼þʱµÄһЩ¾­Ñ飨Õâ¸ö»¹µ ......

fork compare to exec in linux c program

pid_t  pid=fork()
it has 3 situation for the return result pid
0  child
>0 parent process
<0 fork fail
fork create a new process  and it parent live alse when the child process had been created ......

linux date ÃüÁîÏê½â

linux date ÃüÁîÏê½â
 
ʹÓ÷½Ê½ :
date [-u] [-d datestr] [-s datestr]
[--utc] [--universal] [--date=datestr] [--set=datestr] [--help]
[--version] [+FORMAT] [MMDDhhmm[[CC]YY][.ss]]
˵Ã÷ :
date ¿ÉÒÔÓÃÀ´ÏÔʾ»òÉ趨ϵͳµÄÈÕÆÚÓëʱ¼ä£¬ÔÚÏÔʾ·½Ã棬ʹÓÃÕß¿ÉÒÔÉ趨ÓûÏÔʾµÄ¸ñʽ£¬¸ñʽÉ趨Ϊһ¸ö¼Óº ......

linux killÓ÷¨ ¡¢killall¡¢pkill¡¢xkill


Ò». ÖÕÖ¹½ø³ÌµÄ¹¤¾ß kill ¡¢killall¡¢pkill¡¢xkill
ÖÕÖ¹Ò»¸ö½ø³Ì»òÖÕÖ¹Ò»¸öÕýÔÚÔËÐеijÌÐò£¬Ò»°ãÊÇͨ¹ý kill ¡¢killall¡¢pkill¡¢xkill µÈ½øÐС£±ÈÈçÒ»¸ö³ÌÐòÒѾ­ËÀµô£¬µ«ÓÖ²»ÄÜÍ˳ö£¬Õâʱ¾ÍÓ¦¸Ã¿¼ÂÇÓ¦ÓÃÕâЩ¹¤¾ß¡£
ÁíÍâÓ¦Óõij¡ºÏ¾ÍÊÇÔÚ·þÎñÆ÷¹ÜÀíÖУ¬ÔÚ²»Éæ¼°Êý¾Ý¿â·þÎñÆ÷³ÌÐòµÄ¸¸½ø³ÌµÄÍ£Ö¹ÔËÐУ¬Ò²¿ÉÒÔÓÃÕâЩ¹¤¾ßÀ´Ö ......

¼¸ÖÖLinux µÄ¿ª¹Ø»ú״̬½âÎö

ÔÚlinuxÏÂһЩ³£ÓõĹػú/ÖØÆôÃüÁîÓÐshutdown¡¢halt¡¢reboot¡¢¼°init£¬ËüÃǶ¼¿ÉÒÔ´ïµ½ÖØÆôϵͳµÄÄ¿µÄ£¬µ«Ã¿¸öÃüÁîµÄÄÚ²¿¹¤×÷¹ý³ÌÊDz»Í¬µÄ£¬Í¨¹ý±¾ÎĵĽéÉÜ£¬Ï£ÍûÄã¿ÉÒÔ¸ü¼ÓÁé»îµÄÔËÓø÷ÖֹػúÃüÁî¡£
¡¡¡¡ 1.shutdown
   shutdownÃüÁȫµØ½«ÏµÍ³¹Ø»ú¡£ ÓÐЩÓû§»áʹÓÃÖ±½Ó¶ÏµôµçÔ´µÄ·½Ê½À´¹Ø±Õlinux£¬ÕâÊÇÊ®·Ö ......
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