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1. man ¶ÔÄãÊìϤ»ò²»ÊìϤµÄÃüÁîÌṩ°ïÖú½âÊÍ
eg:man ls ¾Í¿ÉÒԲ鿴lsÏà¹ØµÄÓ÷¨
×¢£º°´q¼ü»òÕßctrl+cÍ˳ö£¬ÔÚlinuxÏ¿ÉÒÔʹÓÃctrl+cÖÕÖ¹µ±Ç°³ÌÐòÔËÐС£
2. ls ²é¿´Ä¿Â¼»òÕßÎļþµÄÊô*£¬ÁоٳöÈÎһĿ¼ÏÂÃæµÄÎļþ
eg: ls /usr/man
ls -l
a.d±íʾĿ¼(directory)£¬Èç¹ûÊÇÒ»¸ö"-"±íʾÊÇÎļþ£¬Èç¹ûÊÇlÔò±íʾÊÇÒ»¸öÁ¬½ÓÎļþ(link)
b.±íʾÎļþ»òÕßĿ¼Ðí¿ÉȨÏÞ.·Ö±ðÓÿɶÁ(r)£¬¿Éд(w)£¬¿ÉÔËÐÐ(x)¡£
3. cp ¿½±´Îļþ
eg: cp filename1 filename2 //°Ñfilename1¿½±´³Éfilename2
cp 1.c netseek/2.c //½«1.c¿½µ½netseekĿ¼ÏÂÃüÃûΪ2.c
4. rm ɾ³ýÎļþºÍĿ¼
eg: rm 1.c //½«1.cÕâ¸öÎļþɾ³ý
5. mv ÒÆ×ßĿ¼»òÕ߸ÄÎļþÃû
eg: mv filename1 filename2 //½«filename1 ¸ÄÃûΪfilename2
mv qib.tgz ../qib.tgz //ÒƵ½ÉÏÒ»¼¶Ä¿Â¼
6. cd ¸Ä±äµ±Ç°Ä¿Â¼ pwd ²é¿´µ±Ç°ËùÔÚĿ¼ÍêÕû·¾¶
eg: pwd //²é¿´µ±Ç°ËùÔÚĿ¼·¾¶
cd netseek //½øÈënetseekÕâ¸öĿ¼
cd //Í˳öµ±Ç°Ä¿Â¼
7. cat£¬moreÃüÁî
½«Ä³¸öÎļþµÄÄÚÈÝÏÔʾ³öÀ´¡£Á½¸öÃüÁîËù²»Í¬µÄÊÇ:cat°ÑÎļþÄÚÈÝÒ»Ö±´òÓ¡³öÀ´£¬¶ø moreÔò·ÖÆÁÏÔʾ
eg; cat>1.c //¾Í¿ÉÒÔ°Ñ´úÂëÕ³Ìûµ½1.cÎļþÀ°´ctrl+d ±£´æ´úÂë¡£
cat 1.c »òmore 1.c //¶¼¿ÉÒԲ鿴ÀïÃæµÄÄÚÈÝ¡£
gcc -o 1 1.c //½«1.c±àÒë³É.exeÎļþ£¬ÎÒÃÇ¿ÉÒÔÓôËÃü±àÒë³ö´úÂë¡£
8.chmod ÃüÁî ȨÏÞÐÞ¸Ä Ó÷¨£ºchmod һλ8½øÖÆÊý filename¡£
eg: chmod u+x filenmame //Ö»Ïë¸ø×Ô¼ºÔËÐУ¬±ðÈËÖ»ÄܶÁ
//u±íʾÎļþÖ÷ÈË£¬ g ±íʾÎļþÎļþËùÔÚ×é¡£ o ±íʾÆäËûÈË ;r ±í¿É¶Á£¬w ±í¿Éд£¬x ±í¿ÉÒÔÔËÐÐ
chmod g+x filename //ͬ×éµÄÈËÀ´Ö´ÐÐ
9. clear£¬dateÃüÁî
clear:ÇåÆÁ£¬Ï൱ÓëDOSϵÄcls;date:ÏÔʾµ±Ç°Ê±¼ä¡£
10. mount ¼ÓÔØÒ»¸öÓ²¼þÉ豸
Ó÷¨:mount [²ÎÊý] Òª¼ÓÔصÄÉ豸 ÔØÈëµã
eg: mount /dev/cdrom
cd /mnt/cdrom //½øÈë¹âÅÌĿ¼
11. su ÔÚ²»Í˳öµÇ½µÄÇé¿öÏ£¬Çл»µ½ÁíÍâÒ»¸öÈ˵ÄÉí·Ý
Ó÷¨: su -l Óû§Ãû(Èç¹ûÓû§Ãûȱʡ£¬ÔòÇл»µ½root״̬)
eg:su -l netseek (Çл»µ½netseekÕâ¸öÓû§£¬½«ÌáʾÊäÈëÃÜÂë)
12.whoami£¬whereis£¬which£¬id
//whoami:È·ÈÏ×Ô¼ºÉí·Ý
//whereis:²éѯÃüÁîËùÔÚĿ¼ÒÔ¼°°ïÖúÎĵµËùÔÚĿ¼
//which:²éѯ¸ÃÃüÁîËùÔÚĿ¼(ÀàËÆwhereis)
//id:´òÓ¡³ö×Ô¼ºµÄUIDÒÔ¼°GID¡£(UID:Óû§Éí·ÝΨһ±êʶ¡£GID:Óû§×éÉí·ÝΨһ±êʶ¡£Ã¿Ò»¸öÓû§Ö»ÄÜÓÐÒ»¸öΨһµÄUIDºÍ GID)
eg: whoami //ÏÔʾÄã×ÔÒ
Ïà¹ØÎĵµ£º
yumÊÇʲô?(linuxÃüÁî)
Ò». yumÊÇʲô
yum = Yellow dog Updater, Modified
Ö÷Òª¹¦ÄÜÊǸü·½±ãµÄÌí¼Ó/ɾ³ý/¸üÐÂRPM°ü.
ËüÄÜ×Ô¶¯½â¾ö°üµÄÒÐÀµÐÔÎÊÌâ.
ËüÄܱãÓÚ¹ÜÀí´óÁ¿ÏµÍ³µÄ¸üÐÂÎÊÌâ
×¢:ΪʲôҪʹÓÃyum¶ø²»ÓÃapt,×î¼òµ¥µÄÔÒò,Fedora×Ô´ø
¶þ. yumÌصã
*¿ÉÒÔͬʱÅäÖöà¸ö×ÊÔ´¿â(Repository)
*¼ò½àµÄÅäÖÃÎļ ......
ÔÚLinuxÖÐÓÃttySxµÄÐÎʽÀ´±íʾ´®¿ÚÉ豸Ãû£¬Èç COM1±»±íʾΪttyS0£¬COM2±»±íʾΪttyS1£¬ÒÔ´ËÀàÍÆ¡£ÏÂÃæÕâ¸öÃüÁîÏÔʾϵͳÖб»¼ì²âµ½µÄ´®¿Ú£º
# dmesg | grep ttyS
[ 25.942157] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 25.942840] 00:08: ttyS0 at I/O 0x3f8 (irq = 4) ......
×÷Õߣºbioforge alkerr@yifan.net
ÔÃû£º <<Hacking the Linux Kernel Network Stack>>
·Ò룬Ð޸ģº duanjigang <duanjigang1983@126.com>
·Òë²Î¿¼£ºraodan (raod_at_30san.com) 2003-08-22
µÚÒ»Õ ¼ò½é
±¾ÎĽ«ÃèÊöÈçºÎÀûÓÃLinuxÍøÂç¶ÑÕ»µÄÇÏÃÅ£¨²»Ò»¶¨¶¼ÊÇ©¶´£©À´´ïµ½Ò»Ð©Ä¿µÄ£¬»ò ......
linuxÏÂfile descriptoerÏÞÖÆ
ĬÈÏ·ÖÀà 2009-11-21 14:47 ÔĶÁ0 ÆÀÂÛ0
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Tuning file descriptor limits on Linux
Linux limits the number of file descriptors that any one process may open; the default limits are 1024 p ......