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Linux kill

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    Ê×ÏÈ£¬ÎÒÃÇÐèҪʹÓÃlinuxÏÂÁíÍâÒ»¸öpsÃüÁî²éÕÒÓë½ø³ÌÏà¹ØµÄPIDºÅ£ºps aux | grep program_filter_word
    ps a ÏÔʾÏÖÐÐÖն˻úϵÄËùÓгÌÐò£¬°üÀ¨ÆäËûÓû§µÄ³ÌÐò¡£
    ps -A ÏÔʾËùÓгÌÐò¡£
    ps c Áгö³ÌÐòʱ£¬ÏÔʾÿ¸ö³ÌÐòÕæÕýµÄÖ¸ÁîÃû³Æ£¬¶ø²»°üº¬Â·¾¶£¬²ÎÊý»ò³£×¤·þÎñµÄ±êʾ¡£
    ps -e ´Ë²ÎÊýµÄЧ¹ûºÍÖ¸¶¨"A"²ÎÊýÏàͬ¡£
    ps e Áгö³ÌÐòʱ£¬ÏÔʾÿ¸ö³ÌÐòËùʹÓõĻ·¾³±äÁ¿¡£
    ps f ÓÃASCII×Ö·ûÏÔʾÊ÷×´½á¹¹£¬±í´ï³ÌÐò¼äµÄÏ໥¹Øϵ¡£
    ps -H ÏÔʾÊ÷×´½á¹¹£¬±íʾ³ÌÐò¼äµÄÏ໥¹Øϵ¡£
    ps -N ÏÔʾËùÓеijÌÐò£¬³ýÁËÖ´ÐÐpsÖ¸ÁîÖն˻úϵijÌÐòÖ®Íâ¡£
    ps s ²ÉÓóÌÐòÐźŵĸñʽÏÔʾ³ÌÐò×´¿ö¡£
    ps S Áгö³ÌÐòʱ£¬°üÀ¨ÒÑÖжϵÄ×Ó³ÌÐò×ÊÁÏ¡£
    ps -t<Öն˻ú±àºÅ> Ö¸¶¨Öն˻ú±àºÅ£¬²¢ÁгöÊôÓÚ¸ÃÖն˻úµÄ³ÌÐòµÄ×´¿ö¡£
    ps u ÒÔÓû§ÎªÖ÷µÄ¸ñʽÀ´ÏÔʾ³ÌÐò×´¿ö¡£
    ps x ÏÔʾËùÓгÌÐò£¬²»ÒÔÖն˻úÀ´Çø·Ö¡£
    ×î³£Óõķ½·¨ÊÇps aux,È»ºóÔÙͨ¹ý¹ÜµÀʹÓÃgrepÃüÁî¹ýÂ˲éÕÒÌض¨µÄ½ø³Ì,È»ºóÔÙ¶ÔÌض¨µÄ½ø³Ì½øÐвÙ×÷¡£
    Æä´Î£¬Ê¹ÓÃkillÃüÁî½áÊø½ø³Ì£ºkill xxx
    1)×÷ÓÃ
    killÃüÁîÓÃÀ´ÖÐÖ¹Ò»¸ö½ø³Ì¡£
    2)¸ñʽ
    kill [ £­s signal | £­p ] [ £­a ] pid ...
    kill £­l [ signal ]
    3)²ÎÊý
    £­s£ºÖ¸¶¨·¢Ë͵ÄÐźš£
    £­p£ºÄ£Äâ·¢ËÍÐźš£
    £­l£ºÖ¸¶¨ÐźŵÄÃû³ÆÁÐ±í¡£
    pid£ºÒªÖÐÖ¹½ø³ÌµÄIDºÅ¡£
    Signal£º±íʾÐźš£
    4)˵Ã÷
    ½ø³ÌÊÇLinuxϵͳÖÐÒ»¸ö·Ç³£ÖØÒªµÄ¸ÅÄî¡£LinuxÊÇÒ»¸ö¶àÈÎÎñµÄ²Ù×÷ϵͳ£¬ÏµÍ³ÉϾ­³£Í¬Ê±ÔËÐÐ×Ŷà¸ö½ø³Ì¡£ÎÒÃDz»¹ØÐÄÕâЩ½ø³Ì¾¿¾¹ÊÇÈçºÎ·


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LinuxÖ®uptime¡¢topÃüÁî


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load average ¶Ô performance µÄÓ°Ïì?
1. Èç¹ûload average/CPUÊýÁ¿ < 3, performance is good
2. Èç¹ûload average/CPUÊýÁ¿ > 5, performance is very bad
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LinuxÏÂsamba·þÎñÆ÷¼ÜÉè·½·¨.

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Linux Socket±à³ÌʵÀý(Ò»¸öHello World³ÌÐò)

      ÔÚLinuxÏÂдÁ˸öСµÄsocket³ÌÐò£¬·ÖΪ¿Í»§¶ËºÍ·þÎñÆ÷¶Ë£¬·þÎñ¶Ë¿ªÒ»¸ö¶Ë¿Ú(20000)£¬×öΪһ¸ödaemon£¬µÈ´ý¿Í»§µÄÁ¬½ÓÇëÇó¡£Ò»µ©Óпͻ§Á¬½Ó£¨¿Í»§¶ËµÄIPºÍ¶Ë¿ÚºÅÊDz»¹Ì¶¨µÄ£©£¬·þÎñÆ÷¶Ë´òÓ¡³ö¿Í»§¶ËµÄIPµØÖ·ºÍ¶Ë¿Ú£¬²¢ÇÒÏò¿Í»§¶Ë·¢ËÍ»¶Ó­ÐÅÏ¢ºÍʱ¼ä¡£
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qdisk(5) Linux man page

QDisk 1.2 - a disk-based quorum daemon for CMAN / Linux-Cluster
1. Overview
1.1 Problem
In some situations, it may be necessary or desirable to sustain a majority node failure of a cluster without introducing the need for asymmetric cluster configurations (e.g. client-server, or heavily-weighted ......
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