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Ubuntu С¼¼ÇÉ

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1. ÅäÖÃ
/etc/£ºËùÓеÄϵͳÅäÖÃÎļþ¶¼ÔÚ¡°/etc /¡±Ä¿Â¼ÏÂ,ÆäËûÖØÒªÄ¿Â¼£¬ÔÚÕâÀï½éÉܹý£º

2. ÊØ»¤½ø³ÌºÍϵͳ
/etc/init.d/file restart ÖØÆôÒ»Ïî·þÎñ£¬ÏµÍ³ÊØ»¤½ø³Ì¡£
/etc/init.d/file stop Í£Ö¹Ò»Ïî·þÎñ£¬ÏµÍ³ÊØ»¤½ø³Ì¡£
/etc/init.d/file start Æô¶¯Ò»Ïî·þÎñ£¬ÏµÍ³ÊØ»¤½ø³Ì¡£

Õâ¸öºÜ³£ÓÃ

3. ¿ì½Ý¼ü
ALT+F2 ´ò¿ªÔËÐÐÓ¦ÓóÌÐò¶Ô»°¿ò£¬ÀÁÈ˵Ä×ö·¨
ÊäÈëgnome-terminal¾Í¿ÉÒÔ½øÈëÖÕ¶Ë¡£
Ctrl+U×éºÏ¼ü£¬É¾³ýÐÐÊ×µ½¹â±ê¼äµÄλÖá£
Ctrl+D×éºÏ¼ü£¬ÖÐÖ¹ÊäÈë¡£
Ctrl+A×éºÏ¼ü£¬Òƶ¯¹â±êµ½ÐÐÊס£
Ctrl+E×éºÏ¼ü£¬Òƶ¯¹â±êµ½ÐÐβ¡£
Ctrl+K×éºÏ¼ü £¬É¾³ýÐÐβµ½¹â±ê¼äµÄλÖá£
ÐéÄâ¿ØÖÆÌ¨µÄÑ¡Ôñ¿ÉÒÔͨ¹ý °´ÏÂCtrl+Alt×éºÏ¼ü ºÍÒ»¸ö¹¦ÄܼüÀ´ÊµÏÖ£¬Í¨³£Ê¹ÓÃF1~F6¼ü£¬F7·µ»Ø×ÀÃæ

£ªhistory²é¿´Ê¹ÓùýµÄÃüÁîÀúÊ·£¬"GNU History Library"
Just "man history" for more information
tab²¹È«ÃüÁî

F11¼ü¾ÍÊǰѿØÖÆÌ¨switch tie min and max size¡£
Ctrl+L¾ÍÊÇÇåÆÁ£¬Ï൱ÓÚclearÃüÁî¡££¨Õâ¸öÃüÁî±¾È˺ܳ£Óã©

4. viһϼ¸¸öÅäÖÃÍøÂçµÄÖØÒªÎļþ
/etc/hostname ÅäÖÃÖ÷»úÃû¡£
/etc/network/interfaces£ºÍøÂçÅäÖá£
/etc/resolv.conf DNSÅäÖá£
ºÜ³£Óã¬Ìá¸ßЧÂÊ

dpkg-reconfigure xserver-xorg£ºÊó±ê¡¢¼üÅÌ¡¢ÏÔʾÆ÷ºÍÏÔ¿¨µÄÅäÖᣣ¨ºÜÖØÒª£©

5. APT¼¼ÇÉ¡£
apt-get remove package-names£ºÉ¾³ýÈí¼þ°ü£¬¼°ÆäËùÓÐÒÀÀµËüµÄ°ü¡£
apt-cache depends package-names£ºÁгöÖ¸¶¨°üµÄËùÓÐÒÀÀµ¡£
apt-get update£º´Ó¡±/etc/apt/sources.list¡°ÎļþÖеÄÔ´¸üÐÂÈí¼þ°üÁÐ±í¡£

ÈçºÎÉý¼¶Ä³¸öÈí¼þ£¿²»Óû³ÒÉ£¬just "apt-get install packagename"Ò»°ãϵͳ»áÌáʾ¸üеÚÈý·½Èí¼þ£¬µ±Ô´ÀïûÓм°Ê±¸üУ¬¶øÓÖÐèÒª×îÐÂÈí¼þʱ£¬ÄǾ͵Ã×Ô¼ºµ½¹ÙÍøÏÂÔØ°üÁË£¬±¾ÈËϲ»¶Ô´Âë°ü^_^

6. DPKG¼¼ÇÉ¡£
dpkg -l [names]:ÁгöÈí¼þ°ü¡£
dpkg -i pkg.deb£º°²×°Èí¼þ°ü
Æäʵ×îºÃµÄ°ì·¨£¬½¨ÒéÄãÈ¥ÎÊ¡°ÄÐÈË¡±£¬ÕâÒ²ÊDZ¾È˾­³£Óõķ½·¨£¬ÊµÔڼDz»ÁËÄÇô¶àÃüÁî¡£

¶þ£©
1£©ÆôÓÃrootÓû§ÃÜÂë
: sudo passwd root
: ϵͳ»áÌáʾÄãÊäÈëÐÂÃÜÂ룬ͬʱÆôÓÃËü¡£
:
: 2£©½ûÓÃrootÕÊ»§
: sudo passwd -l root
:
: 3£©ÔÊÐírootÓû§µÇÈëGNOME
: ÆôÓÃrootºó£¬
: ´ò¿ª¡°ÏµÍ³¡úϵͳ¹ÜÀí¡úµÇ¼´°¿Ú¡±£¬Ñ¡Ôñ¡°°²È«¡±¡£¹´Ñ¡¡°ÔÊÐí±¾µØÏµÍ³¹ÜÀíÔ±µÇ¼¡±

: 4£©×Ô¶¯µÇ¼GNOME

: ´ò¿ª¡°ÏµÍ³->ϵͳ¹ÜÀí->µÇ¼´°¿Ú¡±£¬Ñ¡Ôñ¡°°²È«¡±¡£¹´Ñ¡¡°Æô¶¯Ê±×Ô¶¯µÇ¼¡±²¢Ñ¡ÔñÒ» ¸öÓû§¡£

Ã÷ÏÔ£¬²»ÍƼö´Ë×ö·¨£¡

5£©ÔÚ°²×°Windowsºó»Ö¸´GRUBÆô¶¯²Ëµ¥
: ¾­³£³öÏÖµÄÇé¿öÊÇ£¬ÎÒÃÇÏëÖØ×°Ò»ÏÂwindowsϵͳ£¬µ«ÊÇ֨װ»á°ÑÆô¶¯LinuxµÄ²Ëµ¥³åµô£¬
: ÕâÊǸöÈÃÈËÍ·ÌÛµÄÎÊÌ⣬ÎÒÃÇÕâÑùÀ´½â¾öËü£º
: Ê×ÏȰ´ÕÕµÚÒ»ÏÓÃUbuntu°²×°ÅÌ»ñµÃrootȨÏÞ£¬ÎÒÃǼٶ¨ /dev/hda Ϊ /boot ËùÔÚ·ÖÇø
: £¬È»ºóÔÚÌáʾ·ûÊäÈ룺
: grub-install /dev/hda
: ÕâÑùgrub-install³ÌÐò»áΪÎÒÃǰ²×°grub²Ëµ¥¡£

6£© ¸Ä±äGRUB ²Ëµ¥Òýµ¼µÄϵͳ¡£
sudo cp /boot/grub/menu.lst /boot/grub/menu.lst_backup
sudo gedit /boot/grub/menu.lst
½ÓÏÂÀ´×Ô¼ºÏëÏóÀ²£¬¿´¿´Ó¢ÎľÍÖªµÀÁË¡­¡­

Èý£©
suÇл»µ½root, "su - athena"¾Í»»»Ø±¾È˵ÄÕÊ»§ÁË¡£

È¥µôÍø¹Ø
route delete default
¼ÓÉÏÍø¹Ø
route add default gw xxx.xxx.xxx.xxx
²ì¿´Â·ÓÉ
netstat -rn
ÊÖ¹¤Ôö¼ÓÒ»Ìõ·ÓÉ£º
route add -net 192.168.0.0 netmask 255.255.255.0 gw 172.16.0.1
ÊÖ¹¤É¾³ýÒ»Ìõ·ÓÉ£º
route del -net 192.168.0.0 netmask 255.255.255.0 gw 172.16.0.1

fat32µÄ·ÖÇø mount -o codepage=936,iocharset=cp936 /dev/hda7 /mnt/cdrom
ntfsµÄ·ÖÇø mount -o iocharset=cp936 /dev/hda7 /mnt/cdrom
isoÎļþ mount -o loop /abc.iso /mnt/cdrom
ÈíÅÌ mount /dev/fd0 /mnt/floppy
USBÉÁ´æ mount /dev/sda1 /mnt/cdrom
ËùÓÐ/etc/fstabÄÚÈÝ mount -a
¿ÉÒÔÖ¸¶¨Îļþ¸ñʽ"-t ¸ñʽ", ¸ñʽ¿ÉÒÔΪvfat, ext2, ext3µÈ.
·ÃÎÊDVD mount -t iso9660 /dev/dvd /mnt/cdrom»òmount -t udf /dev/dvd /mnt/cdrom
×¢Ò⣺dvdµÄ¸ñʽһ°ãΪiso9660»òudfÖ®Ò»
¼ÓÔØ¹âÇýÃüÁî mount -t iso9660 /dev/cdrom /mnt/cdrom

È¡ÏûDHCP:
#/etc/rc.d/init.d/xinetd stop

È¡ÏûÏÔʾÆ÷ÐÝÃß:
#setterm -blank n (nΪµÈ´ýʱ¼ä)

²é¿´¿ª»úÓ²¼þÍø¿¨ÐÅÏ¢:
#dmesg | more eth0

½ûÖ¹ping:
echo 1 > /proc/sys/net/ipv4/icmp_echo_ignore_all
Ìí¼Óµ½/etc/rc.localÀï

·Àֹij¸öÎļþ±»ÐÞ¸Ä:
chattr +i /etc/fstab
chattr -i /etc/fstab

½ûÖ¹±¾»ú443¶Ë¿Ú:
iptables -A INPUT -p all --dport 443 -j DROP
iptables -A OUTPUT -p all --sport 443 -j DROP

²é¿´Ïêϸ¶Ë¿ÚÁ¬½ÓÃüÁî:
cat /proc/net/ip_conntrack

²é¿´¶Ë¿ÚÉÏÔËÐÐʲô³ÌÐò:
lsof -i:22

Æô¶¯ºó¿ªÆôNumLock
for t in 1 2 3 4 5 6 7 8
do
setleds +num
$t>/dev/null
done

tar ·Ö¾íѹËõºÍºÏ²¢
ÒÔÿ¾í500MΪÀý
tar·Ö¾íѹËõ£ºtar cvzpf - mytarfile.tar.gz | split -d -b 500m
tar¶à¾íºÏ²¢£ºcat x* > mytarfile.tar.gz

²éÕÒ´óСΪ500Kµ½1000KÖ®¼äµÄÎļþ
find -type f -size +500k -and -size -1000k

ͨ¹ýppp0ÉÏÍø,×öNATת»»:
iptables -t nat -A POSTROUTING -o ppp0 -s 192.168.20.0/24 -j MASQUERADE

ÖÕÖ¹³ÌÐò½ø³Ì:
killall httpd ×Ó¸¸½ø³ÌÈ«¶¼Í£Ö¹.

²é¿´½ø³ÌÊ÷:
pstree -cp

Ìá¸ßÓÅÏȼ¶½ø³Ì:
renice +20 123 ¼õСpidΪ123µÄÓÅÏȼ¶
·¶Î§´Ó-20~+20

date -s 20:30:30 #ÉèÖÃϵͳʱ¼äΪ20:30:30
date -s 2002-3-5 #ÉèÖÃϵͳʱÆÚΪ2003-3-5
clock -r #¶ÔϵͳBiosÖжÁȡʱ¼ä²ÎÊý
clock -w #½«ÏµÍ³Ê±¼ä(ÈçÓÉdateÉèÖõÄʱ¼ä)дÈëBios

strace netscape #¸ú×Ù³ÌÐònetscapeµÄÖ´ÐУ¬¿´µ÷ÓõĿ⣬»·¾³±äÁ¿ÉèÖã¬ÅäÖÃÎļþ£¬Ê¹ÓõÄÉ豸£¬µ÷ÓÃµÄÆäËüÓ¦ÓóÌÐòµÈ£¬ÔÚstraceÏ£¬³ÌÐò¸ÉÁËʲô¶«¶«Ò»Ä¿ÁËÈ»¡£

²éѯÓòÃûµ±Ç°Ê¹ÓõÄDNS:
1¡¢ÔÚDos´°¿ÚÏÂÊäÈë:nslookup
2¡¢set type=ns
3¡¢ÊäÈëÓòÃû,Ç°Ãæ²»¼Ówww
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