¹

֡Ѻͧͧ¹ س ҹҹͧԡ سͧͧѡ ٻҧԧͧ سͧҹԡ٧ ¹ ͧ , , Ԥ/

ԴѺк չء / ԡ ѡԴҹ ˹ ١¡ Shell () ͧء ҡѺͧк ҡʴ ѾҡѺա


çҧͧк UNIX]">

ǹ˭ͧԴѺԡҹҧͧ ǹ ˭кԡͧ ѹԧ §ء˹кԡ

ҧ

ص͹
$ sort -n phonelist > phonelist.sorted
Ѻ §Ѻ÷Ѵͧ phonelist (§ѺŢ) Ѿŧ phonelist.sorted ͹ҹѧ

ѵͧ

кԡö͡͹ҧҧҡк Ժѵôͧ١ӡѴԴѺ (command.com) §

Ѻá (Bourne Shell) ١ͧԴ (࿹ ⺹ : Steven Bourne) ⺹ ١Ѻ UNIX version 7 Ѻ ҡش˹ դ. 1979

ǹ˭ѡҡ¡к sh ֧Ѩغѹ ͡ҡ ԡѨغѹѺѲҡ ѧӤѭҹ˹ԡءкͧ ١Ѳѧǹ˭ѹѺ

١ѲѧѺҧ٧ C shell csh Bill Joy () Է California at Berkeley ǹ˹ͧ кԡͧ Berkeley System Distribution (BSD) BSD Unix ˵¡ C shell ͧҡ ٻͧ ҹѺ C Ѻҹҡ

١ѲѺ٧ա˹ Korn Shell () ksh ١Ѳ David Korn ҡ AT&T Bell Lab ҧ 1980 ѹѺ ҹ͹öҹ ͡ҡ ѧٻҧҧ١ öҹдǡ ҡسͧ֡Ѻͧͧ¹ ԧ´ س˹ѧ͸Ժͧͧ ͧҡѨغѹ ҵҹͧк ԡ

͡ҡ ⺹ ѧѲ سҾ٧͡ա pdksh (Public Domain Korn shell) bash (Bourne again shell) ͧҡѺҧ٧ͧ Ѳ ӹǹҡ͡ҧԧ֧ ͧ USL (UNIX System Laboratories) Ѩغѹ١͹Ѻѷ SCO Unix ԢԷͧ

pdksh ֧١ѲѹѺ ksh Ѻ pdksh ö (public domain) ǹ bash ҧ FSF (Free Software Foundation) Ѳ bash ѹѺ ksh ö ҧǹͧ csh ö١¹Ѻ Ѻ bash bash öѹ

кչءسҨö͡ԴẺ ash, bash, csh, tcsh, pdksh zsh سöǨͺѨغѹسѧ

$ echo $SHELL 
/bin/bash
ҧʴѧ bash Bourne again shell ҡسͧ¹¡ҹԴ ö ͹ͧͧŧ
$ bash (call Bourne again shell)
$ csh  (call c shell)

ö¹ŧտŷ ١¡ء͡Թ ҹк ҡ /etc/passwd
֡Ѻ¹ ҧԧ֧ ѡ سö bash Bourne again shell ͧ֡ ͧҡǹ˭ͧö bash


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