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linux ³£ÓÃÃüÁî×ܽá:
Ò»¡£ ͨÓÃÃüÁî:
1. date £ºprint or set the system date and time
2. stty -a: ¿ÉÒԲ鿴»òÕß´òÓ¡¿ØÖÆ×Ö·û(Ctrl-C, Ctrl-D, Ctrl-ZµÈ)
3. passwd: print or set the system date and time (ÓÃpasswd -h²é¿´)
4. logout, login: µÇ¼shellµÄµÇ¼ºÍ×¢ÏúÃüÁî
5. pwd: print or set the system date and time
6. more, less, head tail: ÏÔʾ»ò²¿·ÖÏÔʾÎļþÄÚÈÝ.
7. lp/lpstat/cancel, lpr/lpq/lprm: ´òÓ¡Îļþ.
8. ¸ü¸ÄÎļþȨÏÞ£º chmod u+x...
9. ɾ³ý·Ç¿ÕĿ¼£ºrm -fr dir
10.¿½±´Ä¿Â¼£º cp -R dir
11. fg jobid :¿ÉÒÔ½«Ò»¸öºǫ́½ø³Ì·Åµ½Ç°Ì¨¡£
  Ctrl-z ¿ÉÒÔ½«Ç°Ì¨½ø³Ì¹ÒÆð(suspend), È»ºó¿ÉÒÔÓÃbg jobid ÈÃÆäµ½ºǫ́ÔËÐС£
  job & ¿ÉÒÔÖ±½ÓÈÃjobÖ±½ÓÔÚºǫ́ÔËÐС£
12. kill µÄ×÷ÓÃ: send a signal to a process. eg: kill -9 ·¢Ë͵ÄÊÇSIG_KILLÐźš£¡£¡£ ¾ßÌå·¢ËÍʲôÐźŠ  ¿ÉÒÔͨ¹ý man kill ²é¿´¡£
13. ps µÄÓ÷¨£¬ ps -e »ò ps -o pid,ppid,session,tpgid, comm (ÆäÖÐsessionÏÔʾµÄsessionid, tpgidÏÔʾǰ̨½ø³Ì×éid, commÏÔʾÃüÁîÃû³Æ¡£)
¶þ .ubuntu³£ÓÃÃüÁî:
1. dpkg: package manager for Debian
* °²×°£º dpkg -i package
* жÔØ£º dpkg -r package
* жÔز¢É¾³ýÅäÖÃÎļþ: dpkg -P |--purge package
* Èç¹û°²×°Ò»¸ö°üʱ¡£ËµÒÀÀµÄ³Ð©¿â¡£ ¿ÉÒÔÏÈ apt-get install somelib...
* ²é¿´Èí¼þ°ü°²×°ÄÚÈÝ :dpkg -L package
* ²é¿´ÎļþÓÉÄĸöÈí¼þ°üÌṩ: dpkg -S filename
* ÁíÍâ dpkg»¹ÓÐ dselectºÍaptitude Á½¸öfrontend.
2. apt
* °²×°: apt-get install packs
* apt-get update : ¸üÐÂÔ´
* apt-get upgrade: Éý¼¶ÏµÍ³¡£
* apt-get dist-upgrade: ÖÇÄÜÉý¼¶¡£°²×°ÐÂÈí¼þ°ü,ɾ³ý·ÏÆúµÄÈí¼þ°ü
* apt-get -f install £º -f == --fix broken ÐÞ¸´ÒÀÀµ
* apt-get autoremove: ×Ô¶¯É¾³ýÎÞÓõÄÈí¼þ
* apt-get remove packages :ɾ³ýÈí¼þ
* apt-get remove package --purge ɾ³ý°ü²¢Çå³ýÅäÖÃÎļþ
* Çå³ýËùÒÔɾ³ý°üµÄ²ÐÓàÅäÖÃÎļþ: dpkg -l |grep ^rc|awk '{print $2}' |tr ["/n"] [" "]|sudo xargs dpkg -P
* °²×°Èí¼þʱºò°üµÄÁÙʱ´æ·ÅĿ¼ : /var/cache/apt/archives
* Çå³ý¸ÃĿ¼: apt-get clean
* Çå³ý¸ÃĿ¼µÄ¾É°æ±¾µÄÈí¼þ»º´æ: apt-get autoclean
* ²éѯÈí¼þsomeµÄÒÀÀµ°ü£º apt-cache depends some
* ²éѯÈí¼þsome±»ÄÄ


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