Một số thao tác cơ bản tren UNIX

UNIX là một hệ điều hành phổ biến trước đây chúng được sử dụng trong các minicpmputer và các workstation trong các công sở nghiên cứu khoa học
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Một số thao tác cơ bản tren UNIXGiíi thiÖu vÒ UNIX- Mét sè thao t¸c c¬ b¶n trªn UNIXI. Tæng quan hÖ ®iÒu hµnh UNIX........................................................................ 4 1. HÖ ®iÒu hµnh Unix....................................................................................... 4 2. C¸c ®Æc ®iÓm c¬ b¶n.................................................................................... 7II. LÖnh vµ tiÖn Ých c¬ b¶n.................................................................................... 8 1. C¸c lÖnh khëi t¹o......................................................................................... 8 2. C¸c lÖnh hiÓn thÞ.......................................................................................... 8 3. §Þnh híng vµo ra ....................................................................................... 8 4. Desktop: ...................................................................................................... 9 5. C¸c lÖnh thao th môc vµ t¸c file ................................................................. 9 6. In Ên .......................................................................................................... 10 7. Th tÝn....................................................................................................... 10 8. Qu¶n lý tiÕn tr×nh....................................................................................... 10 9. KiÓm so¸t quyÒn h¹n vµ b¶o mËt ............................................................... 10 10. Lu tr÷ vµ håi phôc d÷ liÖu ........................................................................ 11 11. C¸c thao t¸c trªn m¹ng .............................................................................. 11III. Th©m nhËp hÖ thèng - C¸c lÖnh c¨n b¶n ........................................................ 11 1. B¾t ®Çu vµ kÕt thóc phiªn lµm viÖc-X¸c lËp m«i trêng hÖ thèng ............... 11 2. C¸c lÖnh hiÓn thÞ........................................................................................ 12 3. §Þnh híng vµo ra vµ ®êng èng: ............................................................. 13 4. Desktop: .................................................................................................... 14 5. C¸c lÖnh thao t¸c trªn th môc, file............................................................ 18 6. In Ên .......................................................................................................... 26 7. Th tÝn ®iÖn tö ........................................................................................... 27 8. Qu¶n lý tiÕn tr×nh....................................................................................... 29 9. C¸c lÖnh liªn quan b¶o mËt vµ quyÒn h¹n .................................................. 30 a) Kh¸i niÖm:................................................................................................. 30 b) C¸c lÖnh .................................................................................................... 32 10. Lu tr÷ vµ håi phôc d÷ liÖu ........................................................................ 35 11. C¸c thao t¸c trªn m¹ng .............................................................................. 37 1Giíi thiÖu vÒ UNIX- Mét sè thao t¸c c¬ b¶n trªn UNIXIV. LËp tr×nh Shell ............................................................................................... 39 1. C¸c ®Æc tÝnh c¬ b¶n.................................................................................... 40 2. LËp tr×nh shell ........................................................................................... 43 a) LÖnh ®iÒu kiÖn........................................................................................... 43 b) LÖnh lÆp .................................................................................................... 46 c) Shell Functions .......................................................................................... 47 d) LÖnh trap ................................................................................................... 48 e) Thùc hiÖn lÖnh ®iÒu kiÖn víi cÊu tróc AND(&&) vµ OR (||) ...................... 48V. Starting Up and Shutting Down...................................................................... 49 1. Booting the System .................................................................................... 49 2. Shutting Down the System ......................................................................... 56VI. Managing processes....................................................................................... 57 1. Processes ................................................................................................... 57 2. Process scheduling..................................................................................... 59 3. Process priorities ....................................................................................... 61VII. Security ..................................................................................................... 61 1. Security datafiles ....................................................................................... 62 2. Group and User administration .................................................................. 66 a) Group administration ................................................................................. 66 b) User administratio ...