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yum = Yellow dog Updater, Modified
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*×Ô¶¯½â¾öÔö¼Ó»òɾ³ýrpm°üʱÓöµ½µÄÒÐÀµÐÔÎÊÌâ
*ʹÓ÷½±ã
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Èý. yum°²×°
Fedora×Ô´ø(yum-2.0.4-2.noarch.rpm)
#rpm -ivh yum-2.0.4-2.noarch.rpm
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//¼ì²é¿É¸üеÄrpm°ü
#yum check-update
//¸üÐÂËùÓеÄrpm°ü
#yum update
//¸üÐÂÖ¸¶¨µÄrpm°ü,Èç¸üÐÂkernelºÍkernel source
#yum update kernel kernel-source
//´ó¹æÄ£µÄ°æ±¾Éý¼¶,Óëyum update²»Í¬µÄÊÇ,Á¬¾ÉµÄÌÔÌ­µÄ°üÒ²Éý¼¶
#yum upgrade
*rpm°üµÄ°²×°ºÍɾ³ý
//°²×°rpm°ü,Èçxmms-mp3
#yum install xmms-mp3
//ɾ³ýrpm°ü,°üÀ¨Óë¸Ã°üÓÐÒÐÀµÐԵİü
#yum remove licq
×¢:ͬʱ»áÌáʾɾ³ýlicq-gnome,licq-qt,licq-text
*yumÔÝ´æ(/var/cache/yum/)µÄÏà¹Ø²ÎÊý
//Çå³ýÔÝ´æÖÐrpm°üÎļþ
#yum clean packages
//Çå³ýÔÝ´æÖÐrpmÍ·Îļþ
#yum clearn headers
//Çå³ýÔÝ´æÖоɵÄrpmÍ·Îļþ
#yum clean oldheaders
//Çå³ýÔÝ´æÖоɵÄrpmÍ·ÎļþºÍ°üÎļþ
#yum clearn »ò#yum clearn all
×¢:Ï൱ÓÚyum clean packages + yum clean oldheaders
*rpm°üÁбí
//Áгö×ÊÔ´¿âÖÐËùÓпÉÒÔ°²×°»ò¸üеÄrpm°ü
#yum list
//Áгö×ÊÔ´¿âÖÐÌض¨µÄ¿ÉÒÔ°²×°»ò¸üÐÂÒÔ¼°ÒѾ­°²×°µÄrpm°ü
#yum list mozilla
#yum list mozilla*
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*rpm°üÐÅÏ¢ÏÔʾ(info²ÎÊýͬlist)
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#yum info mozilla
#yum info mozilla*
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linux´ÅÅÌÐÔÄܲâÊÔ

 120-test:/# apt-get install hdparm
Õæʵ»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
²âÊÔ´ÅÅÌÐÔÄÜ£¨´øcache£©
120-test:/home/lai# hdparm -T /dev/sda
/dev/s ......

linuxϵÄʵʱ»æͼ

ÎÒÔÚÏîÄ¿µÄ¿ª·¢ÖÐÓöµ½ÁËÕâÑùÒ»¸öÎÊÌ⣬ÎÒÒª°ÑÏÂλ»úʵʱ²É¼¯µÄÊý¾Ý£¬Í¨¹ý»æͼÏÔʾµ½ÆÁÄ»ÉÏ£¬ÎÒ²ÉÓÃÁËÕâÑùµÄ˼·£¬¿ªÆôÒ»¸öÏß³ÌÀ´½ÓÊÕÏÂλ»úµÄÊý¾Ý£¬²»ÖÁÓÚʹÖ÷Ïß³Ì×èÈû£¬×ʼÎÒÏëµ½µÄÊÇgtk_widget_queue_draw£¬¸ù±¾¾Í²»ÊµÊ±£¬ÒòΪÕâ¸öº¯ÊýÊÇÒì²½µÄ£¬Èç¹ûÏß³ÌÑ­»·µÄ±È½ÏƵ·±µÄ»°£¬»æͼÇø¾ÍÀ´²»¼°Ë¢Ð£¬¸üºÎ¿öÎÒÓÐ10¸ödraw_ ......

linuxÎļþ /etc/services Ïà¹Ø

/etc/services
InternetÍøÂç·þÎñÎļþ£¬¼Ç¼ÍøÂç·þÎñÃûºÍËüÃǶÔӦʹÓõĶ˿ںż°Ð­Òé¡£ÎļþÖеÄÿһÐжÔÓ¦Ò»ÖÖ·þÎñ£¬ËüÓÉ4¸ö×Ö¶Î×é³É£¬ÖмäÓÃTAB»ò¿Õ¸ñ·Ö¸ô£¬·Ö±ð±íʾ“·þÎñÃû³Æ”¡¢“ʹÓö˿ڔ¡¢“ЭÒéÃû³Æ”ÒÔ¼°“±ðÃû”¡£ÏÂÃæÊÇÕâ¸öÎļþµÄ½ÚÑ¡ÄÚÈÝ¡£
tcpmux 1/tcp ......

ÖØ×°windowsºó»Ö¸´linuxÒýµ¼

Ç°¼¸ÌìÖØ×°ÁËwindowsϵͳ£¬µ¼ÖÂÒÔÇ°°²×°µÄLinux½ø²»È¥ÁË£¬ÎÞ·¨½øÈëLinux£¬Óò»ÏëÖØа²×°Linux£¬ÄÇÑùÌ«·ÑÊÂÁË£¬ÔÚÍøÉÏËÑË÷ÁËһϣ¬ÕÒµ½»Ö¸´LinuxÒýµ¼µÄ·½·¨£¬¾­ÊµÑ飬ÖØÐÂÒýµ¼½øÈëÔ­À´µÄLinuxϵͳ£¬Ôڴ˼òµ¥¼Ç¼һÏ£º
  Ê×ÏÈ£¬ÏÂÔØÒ»¸öGrub4dos£¬½âѹµ½CÅ̸ùĿ¼Ï£¬°ÑÀïÃæµÄgrldr¸´ÖƵ½¸ùĿ¼Ï£¬ÐÞ¸Äboot.iniÎļþ£ ......

Linux¿ªÆôTelnet(RHEL5)

Linux¿ªÆôTelnet£¨¸½RHEL5)
 
1¡£Èç¹û°²×°ÁËtelnet¡¢telnet-serverµÄrpm°ü£¬¾ÍÌøµ½2¡££¬·ñÔò°²×°Õâ¸ö°ü¡£
2¡£ÐÞ¸Ätelnet·þÎñÅäÖÃÎļþ
vi /etc/xinetd.d/telnet
service telnet
{
disable = yes
flags = REUSE
socket_type = stream
wait = no
user = root
server = /usr/sbin/in.telnetd
log_on_failur ......
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