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  2. µ±Ç°Î»ÖãºÊ×Ò³ > ǶÈëʽÅàѵ > ǶÈëʽѧϰ > ½²Ê¦²©ÎÄ > LinuxÖØÆôÃüÁî½éÉÜ

    LinuxÖØÆôÃüÁî½éÉÜ Ê±¼ä£º2018-12-29      À´Ô´£º»ªÇåÔ¶¼û

    ÏÂÃæ½éÉÜÔÚ Linux ²Ù×÷ϵͳÖÐÖØÆôºÍ¹Ø±ÕÏà¹ØµÄÃüÁshutdown¡¢reboot¡¢init¡¢halt¡¢poweroff¡¢systemctl£¬Äã¿ÉÒÔ¸ù¾ÝÐèÒªÀ´Ñ¡ÔñÊÊºÏµÄ Linux ÃüÁî¹Ø±Õ»òÖØÐÂÆô¶¯ÏµÍ³¡£ÆäÖÐ shutdown¡¢halt¡¢poweroff¡¢reboot ÃüÁîÊÇÓÃÀ´Í£»ú¡¢ÖØÆô»òÇжϵçÔ´£¬ systemctl ÃüÁî¹ÜÀí systemd£¬ÊÇ Linux ϵͳºÍ·þÎñÆ÷µÄ¹ÜÀí³ÌÐò¡£

    ʹÓà shutdown ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    shutdown ÃüÁîÓÃÓڶϵç»òÖØÆô±¾µØºÍÔ¶³ÌµÄ Linux »úÆ÷¡£ËüΪ¸ßЧÍê³É×÷ÒµÌṩ¶à¸öÑ¡Ïî¡£Èç¹ûʹÓÃÁËʱ¼ä²ÎÊý£¬ÏµÍ³¹Ø±ÕµÄ 5 ·ÖÖÓ֮ǰ£¬»á´´½¨ /run/nologin Îļþ£¬ÒÔÈ·±£ºóÐøµÄµÇ¼»á±»¾Ü¾ø¡£

    ͨÓÃÓï·¨ÈçÏ£º

    # shutdown [OPTION] [TIME] [MESSAGE]

    ÔËÐÐÏÂÃæµÄÃüÁîÀ´Á¢¼´¹Ø±Õ Linux »úÆ÷¡£Ëü»áÁ¢¿ÌɱËÀËùÓнø³Ì£¬²¢¹Ø±Õϵͳ£º

    # shutdown -h now

    -h£ºÈç¹û²»ÌØÖ¸ -halt Ñ¡ÏÕâµÈ¼ÛÓÚ -poweroff Ñ¡Ïî¡£

    ÁíÍâÎÒÃÇ¿ÉÒÔʹÓôøÓÐ -halt Ñ¡ÏîµÄ shutdown ÃüÁîÀ´Á¢¼´¹Ø±ÕÉ豸£º

    # shutdown --halt now

    »òÕߣº

    # shutdown -H now

    -H, --halt£ºÍ£Ö¹É豸ÔËÐС£

    ÁíÍâÎÒÃÇ¿ÉÒÔʹÓôøÓÐ poweroff Ñ¡ÏîµÄ shutdown ÃüÁîÀ´Á¢¼´¹Ø±ÕÉ豸£º

    # shutdown --poweroff now

    »òÕߣº

    # shutdown -P now

    -P, --poweroff£ºÇжϵçÔ´£¨Ä¬ÈÏ£©¡£

    Èç¹ûÄúûÓÐʹÓÃʱ¼äÑ¡ÏîÔËÐÐÏÂÃæµÄÃüÁËü½«»áÔÚÒ»·ÖÖÓºóÖ´Ðиø³öµÄÃüÁ

    # shutdown -h

    Shutdown scheduled for THU 2018-11-01 06:42:31 EDT, use 'shutdown -c' to cancel.

    ÆäËûµÄµÇ¼Óû§¶¼ÄÜÔÚÖжÏÖп´µ½ÈçϵĹ㲥ÏûÏ¢£º

    Broadcast message from root@2daygeek.com (THU 2018-11-01 06:41:31 EDT):

    The system is going down for power-off at THU 2018-11-01 06:42:31 EDT!

    ¶ÔÓÚʹÓÃÁË -halt Ñ¡Ï

    # shutdown -H

    Shutdown scheduled for THU 2018-11-01 06:37:53 EDT, use 'shutdown -c' to cancel.

    ¶ÔÓÚʹÓÃÁË -poweroff Ñ¡Ï

    # shutdown -P

    Shutdown scheduled for THU 2018-11-01 06:40:07 EDT, use 'shutdown -c' to cancel.

    ¿ÉÒÔÔÚÄúµÄÖÕ¶ËÉÏÇû÷ shutdown -c Ñ¡ÏîÈ¡Ïû²Ù×÷£º

    # shutdown -c

    ÆäËûµÄµÇ¼Óû§¶¼ÄÜÔÚÖжÏÖп´µ½ÈçϵĹ㲥ÏûÏ¢£º

    Broadcast message from root@vps.2daygeek.com (THU 2018-11-01 06:41:35 EDT):

    The system shutdown has been cancelled at THU 2018-11-01 06:42:35 EDT!

    Ìí¼Óʱ¼ä²ÎÊý£¬Èç¹ûÄãÏëÔÚ N ÃëÖ®ºóÖ´ÐйرջòÖØÆô²Ù×÷¡£ÕâÀÄú¿ÉÒÔΪËùÓеǼÓû§Ìí¼Ó×Ô¶¨Òå¹ã²¥ÏûÏ¢¡£ÀýÈ磬ÎÒÃǽ«ÔÚÎå·ÖÖÓºóÖØÆôÉ豸£º

    # shutdown -r +5 "To activate the latest Kernel"

    Shutdown scheduled for THU 2018-11-01 07:13:16 EDT, use 'shutdown -c' to cancel.

    ÔËÐÐÏÂÃæµÄÃüÁîÁ¢¼´ÖØÆô Linux »úÆ÷¡£Ëü»áÁ¢¼´É±ËÀËùÓнø³Ì²¢ÇÒÖØÐÂÆô¶¯ÏµÍ³£º

    # shutdown -r now

    -r, --reboot£º ÖØÆôÉ豸¡£

    ͨ¹ý reboot ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    reboot ÃüÁîÓÃÓڹرպÍÖØÆô±¾µØ»òÔ¶³ÌÉ豸¡£reboot ÃüÁîÓµÓÐÁ½¸öʵÓõÄÑ¡Ïî¡£

    ËüÄܹ»ÓÅÑŵĹرպÍÖØÆôÉ豸£¨¾ÍºÃÏñÔÚϵͳ²Ëµ¥Öеë¼ÇÖØÆôÑ¡ÏîÒ»Ñù¼òµ¥£©¡£

    Ö´Ðв»´øÈκβÎÊýµÄ reboot ÃüÁîÀ´ÖØÆô Linux »úÆ÷£º

    # reboot

    Ö´Ðдø -p ²ÎÊýµÄ reboot ÃüÁîÀ´¹Ø±Õ Linux »úÆ÷µçÔ´£º

    # reboot -p

    -p, --poweroff£ºµ÷Óà halt »ò poweroff ÃüÁÇжÏÉ豸µçÔ´¡£

    Ö´Ðдø -f ²ÎÊýµÄ reboot ÃüÁîÀ´Ç¿ÖÆÖØÆô Linux É豸£¨ÕâÀàËÆ°´Ñ¹»úÆ÷ÉϵĵçÔ´¼ü£©£º

    # reboot -f

    -f, --force£ºÁ¢¿ÌÇ¿ÖÆÖжÏ£¬ÇжϵçÔ´»òÖØÆô¡£

    ͨ¹ý init ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    init£¨“initialization” µÄ¼òд£©ÊÇϵͳÆô¶¯µÄµÚÒ»¸ö½ø³Ì¡£

    Ëü½«»á¼ì²é /etc/inittab Îļþ²¢¾ö¶¨ linux ÔËÐм¶±ð¡£Í¬Ê±£¬ÔÊÐíÓû§ÔÚ Linux É豸ÉÏÖ´Ðйػú»òÖØÆô²Ù×÷. ÕâÀï´æÔÚ´Ó 0 µ½ 6 µÄÆß¸öÔËÐеȼ¶¡£

    Ö´ÐÐÒÔÏ init ÃüÁî¹Ø±Õϵͳ£º

    # init 0

    0£º Í£»ú – ¹Ø±Õϵͳ¡£

    ÔËÐÐÏÂÃæµÄ init ÃüÁîÖØÆôÉ豸£º

    # init 6

    6£ºÖØÆô – ÖØÆôÉ豸¡£

    ͨ¹ý halt ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    halt ÃüÁîÓÃÀ´ÇжϵçÔ´»ò¹Ø±ÕÔ¶³Ì Linux »úÆ÷»ò±¾µØÖ÷»ú¡£ÖжÏËùÓнø³Ì²¢¹Ø±Õ cpu£º

    # halt

    ͨ¹ý poweroff ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    poweroff ÃüÁîÓÃÀ´ÇжϵçÔ´»ò¹Ø±ÕÔ¶³Ì Linux »úÆ÷»ò±¾µØÖ÷»ú¡£poweroff ºÜÏñ halt£¬µ«ÊÇËü¿ÉÒԹرÕÉ豸Ӳ¼þ£¨µÆºÍÆäËû PC ÉÏµÄÆäËü¶«Î÷£©¡£Ëü»á¸øÖ÷°å·¢ËÍ ACPI Ö¸ÁȻºóÐźŷ¢Ë͵½µçÔ´£¬ÇжϵçÔ´¡£

    # poweroff

    ͨ¹ý systemctl ÃüÁî¹Ø±ÕºÍÖØÆô Linux ϵͳ

    systemd ÊÇÒ»¿îÊÊÓÃÓÚËùÓÐÖ÷Á÷ Linux ·¢ÐͰæµÄȫРinit ϵͳºÍϵͳ¹ÜÀíÆ÷£¬¶ø²»ÊÇ´«Í³µÄ SysV init ϵͳ¡£

    systemd ¼æÈÝÓë SysV ºÍ LSB ³õʼ»¯½Å±¾¡£ËüÄܹ»Ìæ´ú SysV init ϵͳ¡£systemd ÊÇÄÚºËÆô¶¯µÄµÚÒ»¸ö½ø³Ì£¬²¢³ÖÓÐÐòºÅΪ 1 µÄ½ø³Ì PID¡£

    ËüÊÇÒ»Çнø³ÌµÄ¸¸½ø³Ì£¬Fedora 15 ÊǵÚÒ»¸öÊÊÅä°²×° systemd £¨Ìæ´úÁË upstart£©µÄ·¢Ðаæ¡£

    systemctl ÊÇÃüÁîÐÐϹÜÀí systemd ÊØ»¤½ø³ÌºÍ·þÎñµÄÖ÷Òª¹¤¾ß£¨Èç start¡¢restart¡¢stop¡¢enable¡¢disable¡¢reload & status£©¡£

    systemd ʹÓà .service Îļþ¶ø²»ÊÇ SysV init ʹÓÃµÄ bash ½Å±¾¡£ systemd ½«ËùÓÐÊØ»¤½ø³Ì¹éÓë×ÔÉíµÄ Linux cgroups Óû§×éÏ£¬Äú¿ÉÒÔä¯ÀÀ /cgroup/systemd Îļþ²é¿´¸Ãϵͳ²ã´ÎµÈ¼¶£º

    # systemctl halt

    # systemctl poweroff

    # systemctl reboot

    # systemctl suspend

    # systemctl hibernate

    ½áÓï

    shutdown¡¢reboot¡¢init¡¢halt¡¢poweroff¡¢systemctl ÃüÁî¿ÉÒÔ´ïµ½ÖØÆôºÍ¹Ø±Õ Linux ϵͳĿµÄ£¬¶¼ÊÇÔÚÃüÁîÐÐϲÙ×÷¡£Èç¹ûÄã¶ÔÃüÁîÐбȽÏÊìϤ£¬ÄÇÕâÑù×öÊÇ×î±ã½ÝµÄ£¬Ò²ÊÇ×ȫµÄ¡£Í¬Ê±ÖØÆôºÍ¹Ø±ÕϵͳµÄÃüÁî²»¶à£¬Äã¿ÉÒÔÑ¡ÔñÆäÖÐÄÃÊÖµÄÀ´Íê³ÉÈÎÎñ¡£

    ÉÏһƪ£º2019ÄêǶÈëʽÐÐÒµÓÐÄÄЩ¾ÍÒµÐÎÊÆ

    ÏÂһƪ£ºCÓïÑÔ£ºÊý¾ÝÖ¸Õë

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