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# uname -a # ²é¿´ÄÚºË/²Ù×÷ϵͳ/CPUÐÅÏ¢
# head -n 1 /etc/issue # ²é¿´²Ù×÷ϵͳ°æ±¾
# cat /proc/cpuinfo # ²é¿´CPUÐÅÏ¢
# hostname # ²é¿´¼ÆËã»úÃû
# lspci -tv # ÁгöËùÓÐPCIÉ豸
# lsusb -tv # ÁгöËùÓÐUSBÉ豸
# lsmod # Áгö¼ÓÔØµÄÄÚºËÄ£¿é
# env # ²é¿´»·¾³±äÁ¿
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# free -m # ²é¿´ÄÚ´æÊ¹ÓÃÁ¿ºÍ½»»»ÇøÊ¹ÓÃÁ¿
# df -h # ²é¿´¸÷·ÖÇøÊ¹ÓÃÇé¿ö
# 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
# cat /proc/loadavg # ²é¿´ÏµÍ³¸ºÔØ
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# mount | column -t # ²é¿´¹Ò½ÓµÄ·ÖÇø×´Ì¬
# fdisk -l # ²é¿´ËùÓзÖÇø
# swapon -s # ²é¿´ËùÓн»»»·ÖÇø
# hdparm -i /dev/hda # ²é¿´´ÅÅ̲ÎÊý(½öÊÊÓÃÓÚIDEÉ豸)
# dmesg | grep IDE # ²é¿´Æô¶¯Ê±IDEÉ豸¼ì²â×´¿ö
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# ifconfig # ²é¿´ËùÓÐÍøÂç½Ó¿ÚµÄÊôÐÔ
# iptables -L # ²é¿´·À»ðǽÉèÖÃ
# route -n # ²é¿´Â·Óɱí
# netstat -lntp # ²é¿´ËùÓмàÌý¶Ë¿Ú
# netstat -antp # ²é¿´ËùÓÐÒѾ­½¨Á¢µÄÁ¬½Ó
# netstat -s # ²é¿´ÍøÂçͳ¼ÆÐÅÏ¢
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# ps -ef # ²é¿´ËùÓнø³Ì
# top # ʵʱÏÔʾ½ø³Ì״̬
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# w # ²é¿´»î¶¯Óû§
# 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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linuxÏÂÈí¼þµÄ°²×°(tarƪ)

LinuxÈí¼þµÄ°²×°ºÍÐ¶ÔØÒ»Ö±ÊÇÀ§ÈÅÐí¶àÐÂÓû§µÄÄÑÌâ¡£ÔÚwindowsÖÐ,Èí¼þ°²×°°üÒ»°ãÊÇͨ¹ýÒ»¸öEXE¿ÉÖ´ÐÐÎļþ»òÕßÊÇ×Ô½âѹµÄѹËõ³ÌÐòÀ´°²×°Èí¼þµÄ.¶øÔÚLinuxÖÐ,ÓÉÓÚ·¢Ðа汾µÄ²»Í¬,ʹÓõÄÈí¼þ°ü¹ÜÀíÒ²ÊDz»ÏàͬµÄ,ÔÚÕâÎÒ½«×î»ù±¾µÄtarÔ´´úÂë°üµÄ°²×°·½·¨Ð´ÔÚϱß,ÓÉÓÚÎÒ×Ô¼ºµÄˮƽһ°ã,ËùÒÔÓв»¶ÔµÄµØ·½,Ï£ÍûÄܹ»µÃµ½ÄúµÄÒâ¼û,л ......

linux ioctlº¯Êý¼°ÆäÇý¶¯ºÍÓ¦ÓóÌÐò×¢ÒâÊÂÏî

¹ØÓÚIOCTLÇý¶¯µÄ±àд·½·¨LDDÕâ±¾ÊéȷʵдµÄ±È½ÏÃ÷°×ÁË£¬ÔÚÕâÄØÎҾͼòµ¥µÄ×öÒ»¸ö½éÉÜ¡£ÕâÀïÎÒÖ÷ÒªÃèÊö×Ô¼º±àдIOCTLÇý¶¯Ê±ËùÓöµ½µÄÎÊÌâ¼°ÆäÔ­Òò¡£
    Çý¶¯ÀïµÄioctlº¯ÊýÖ÷ҪʵÏÖ²»ÓÃread,writeº¯ÊýµÄÓëÓû§¿Õ¼äµÄ¼òµ¥Êý¾Ý½»»¥¼°ÎÞ²ÎÊýµÄÃüÁî¿ØÖÆ¡£ÄÇôÎÒÃÇÈçºÎʵÏÖÕ⼸ÖÖ¹¦ÄܵÄIOCTLº¯ÊýÄØ£¿ioctlÇý¶¯ÖÐÒÔS ......

linux´ÅÅÌÐÔÄܲâÊÔ

 120-test:/# apt-get install hdparm
ÕæÊµ»úÆ÷120ÉϲâÊÔ½á¹û£º
²âÊÔ´ÅÅÌÐÔÄÜ£¨²»cache£©
120-test:/home/lai# hdparm -t /dev/sda
/dev/sda:
 Timing buffered disk reads:  346 MB in  3.02 seconds = 114.65 MB/sec
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120-test:/home/lai# hdparm -T /dev/sda
/dev/s ......

LINUX³£ÓÃÃüÁî(ת)

1.# ±íʾȨÏÞÓû§(Èç:root),$ ±íʾÆÕͨÓû§
¿ª»úÌáʾ
ogin:ÊäÈëÓû§Ãû
password:ÊäÈë¿ÚÁî Óû§ÊÇϵͳע²áÓû§³É¹¦µÇ½ºó£¬¿ÉÒÔ½øÈëÏàÓ¦µÄÓû§»·¾³.
Í˳öµ±Ç°shell,ÊäÈë:exit
2.useradd netseek Ìí¼ÓÒ»¸önetseekÓû§
passwd netseek ¸ønetseekÕâ¸öÓû§ÉèÖÃÃÜÂë.
(/etc/passwd /etc/group)
userdel netseek É ......

linux Óû§¹ÜÀí

1. Ôö¼ÓÒ»¸öÐÂÓû§
ÔÚLinuxϵͳÖУ¬Ö»ÓÐrootÓû§²ÅÄܹ»´´½¨Ò»¸öÐÂÓû§£¬ÈçϵÄÃüÁн¨Ò»¸öµÇ¼Ãûuser1µÄÓû§¡£
# useradd user1
µ«ÊÇ£¬Õâ¸öÓû§»¹²»Äܹ»µÇ¼£¬ÒòΪ»¹Ã»¸øËüÉèÖóõʼÃÜÂ룬¶øÃ»ÓÐÃÜÂëµÄÓû§ÊDz»Äܹ»µÇ¼ϵͳµÄ¡£ÔÚĬÈÏÇé¿öÏ£¬½«»áÔÚ/homeĿ¼ÏÂн¨Ò»¸öÓëÓû§ÃûÏàͬµÄÓû§Ö÷Ŀ¼¡£Èç¹ûÐèÒªÁíÍâÖ¸¶¨ ......
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