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# cat /proc/cpuinfo # ²é¿´CPUÐÅÏ¢
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# du -sh <Ŀ¼Ãû> # ²é¿´Ö¸¶¨Ä¿Â¼µÄ´óС
# grep MemTotal /proc/meminfo # ²é¿´ÄÚ´æ×ÜÁ¿
# grep MemFree /proc/meminfo # ²é¿´¿ÕÏÐÄÚ´æÁ¿
# uptime # ²é¿´ÏµÍ³ÔËÐÐʱ¼ä¡¢Óû§Êý¡¢¸ºÔØ
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# mount | column -t # ²é¿´¹Ò½ÓµÄ·ÖÇø×´Ì¬
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# swapon -s # ²é¿´ËùÓн»»»·ÖÇø
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# dmesg | grep IDE # ²é¿´Æô¶¯Ê±IDEÉ豸¼ì²â×´¿ö
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# iptables -L # ²é¿´·À»ðǽÉèÖÃ
# route -n # ²é¿´Â·Óɱí
# netstat -lntp # ²é¿´ËùÓмàÌý¶Ë¿Ú
# netstat -antp # ²é¿´ËùÓÐÒѾ­½¨Á¢µÄÁ¬½Ó
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# id <Óû§Ãû> # ²é¿´Ö¸¶¨Óû§ÐÅÏ¢
# last # ²é¿´Óû§µÇ¼ÈÕÖ¾
# cut -d: -f1 /etc/passwd # ²é¿´ÏµÍ³ËùÓÐÓû§
# cut -d: -f1 /etc/group # ²é¿´ÏµÍ³ËùÓÐ×é
# crontab -l # ²é¿´µ±Ç°Óû§µÄ¼Æ»®ÈÎÎñ
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    printk(KERN_NOTICE);
    printk(linux_banner);
    setup_arch(&command_line);
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LinuxÏÂÅäÖÃNTP ¼ÜÉè±¾µØÊ±¼ä·þÎñÆ÷

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NTPÊÇÓÃÀ´Ê¹ÏµÍ³ºÍÒ»¸ö¾«È·µÄʱ¼äÔ´±£³Öʱ¼äͬ²½µÄЭÒé.ÔÚLinuxÏ£¬ÎÒÃÇ¿ÉÒÔͨ¹ý×Ô´øµÄNTP(Network Time
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