-
ᵡ÷Ѵ ͡ sort, -n, phonelist, >,
phonelist.sorted
-
¡˹ͧ sort ѴѺ
-n phonelist argument Ѻ ǹ >
phonelist.sorted Ѻͧͧ /Ѿ
-͡ (I/O instruction)
-
˹ҧͧѾ͡ "> phonelist.sorted"
Ѿҡػóʴҵҹ (standard output)
phonelist.sorted
-
sort (á /usr/bin ) ҹ argument
-n phonelist
ѵͧ
кԡö͡Ẻ ҧᵡҧҡк
Ժѵôͧ١ӡѴԴѺ (command.com)
§
Ѻá ⺹ (Bourne Shell)
١ͧԴ ( ⺹ : Steven Bourne) ⺹
١ᨡѺ UNIX version 7 Ѻ
ҡش˹ դ. 1979
ǹ˭ѡ⺹ҡ¡к sh ֧Ѩغѹ
͡ҡ ԡѨغѹѺѲҡ ⺹
ѧӤѭҹ˹ԡءкͧ
١Ѳѧǹ˭ѹѺ⺹
١ѲѧѺҧ٧ C shell
csh Bill Joy () Է California at Berkeley
ǹ˹ͧ кԡͧ Berkeley System Distribution (BSD)
BSD Unix ˵¡ C shell ͧҡ ٻẺͧ
ҹѺ C
Ѻҹҡ
١ѲѺ٧ա˹ Korn
Shell () ksh ١Ѳ David Korn ҡ AT&T Bell Lab
ҧ 1980 ѹѺ⺹
ҹ⺹öҹ ͡ҡ
ѧٻẺҧҧ١
öҹдǡ ҡسͧ֡Ѻͧͧ¹
ԧ´ س˹ѧԺͧͧ
ͧҡѨغѹ ҵҹͧк
ԡ
͡ҡ ⺹ ѧѲ
سҾ٧͡ա pdksh (Public Domain Korn shell) bash (Bourne
again shell) ͧҡѺҧ٧ͧ Ѳ
ӹǹҡ͡ҧԧ֧ ͧᨡ
USL (UNIX System Laboratories) Ѩغѹ١Ѻѷ
SCO Unix ԢԷͧ
pdksh ֧١ѲѹѺ ksh Ѻ pdksh ö
ᨡ (public domain) ǹ bash ҧ FSF (Free Software Foundation)
Ѳ bash ѹѺ ksh ö
ҧǹͧ csh ö١¹Ѻ
Ѻ bash bash öᨡѹ
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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