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알파문서 자주 잊어먹거나, 메모해 둘 필요성이 있는 팁이나 문서, 기타 등등

글을 올려주셔서 감사합니다....................................... san2(at)linuxchannel.net

[*** 쓰기 금지단어 패턴 ***] 글 본문 중간에 업로드할 이미지를 추가하는 방법 : @@이미지이름@@ ex) @@foo.gif@@

닉네임 닉네임을 적어 주십시오. 이메일 옵션입니다. 홈페이지 홈페이지 URL(http:// 포함)을 적어 주십시오. 암   호 암호를 입력하셔야 수정, 삭제가 가능합니다. HTML 사용함 사용안함 HTML 코드 사용 여부 제   목 올릴자료 내   용 [산이]님이 남기신 글: >-- example.sh ----------------------------- >#!/bin/sh > >OIFS=$IFS > >TT="10 > 21 22 23 2444444444444444 >30 31 > >50 > > > 61 >70 >" > >echo '------------------------------------' >echo 'orignal string' >echo "$TT" >echo '------------------------------------' > >echo '------------------------------------' >echo 'for() test with default IFS' >echo '------------------------------------' > >for n in $TT ; do > echo "'$n'" >done > >IFS=' >' >echo '------------------------------------' >echo 'for() test with \r\n IFS' >echo '------------------------------------' > >for n in $TT ; do > echo "'$n'" >done > >IFS=$OIFS >echo '------------------------------------' >echo 'pipe and read test with default IFS' >echo '------------------------------------' > >echo "$TT" | while read line etc ; do > echo "'$line' '$etc'" >done > >IFS=' >' >echo '------------------------------------' >echo 'pipe and read test with \r\n IFS' >echo '------------------------------------' > >echo "$TT" | while read line etc ; do > echo "'$line' '$etc'" >done > >IFS=$OIFS >echo '------------------------------------' >echo 'stdin read file with default IFS' >echo '------------------------------------' > >while read line etc ; do > echo "'$line' '$etc'" >done < /tmp/foo.txt > >IFS=' >' >echo '------------------------------------' >echo 'stdin read file with \r\n IFS' >echo '------------------------------------' > >while read line etc ; do > echo "'$line' '$etc'" >done < /tmp/foo.txt > >IFS=$OIFS >echo '------------------------------------' >echo 'single line read with default IFS' >echo '------------------------------------' > >echo "some foo bar comment" | >{ > read first second others > echo "'${first}' '${second}' '${others}'" >} > >IFS=' >' >echo '------------------------------------' >echo 'single line read with default IFS' >echo '------------------------------------' > >echo "some foo bar comment" | >{ > read first second others > echo "'${first}' '${second}' '${others}'" >} > >echo >echo "external variable test: '${first}'" ## is empty > >exit 0 >--------------------------------------------------- > >// result > >------------------------------------ >orignal string >------------------------------------ >10 > 21 22 23 2444444444444444 >30 31 > >50 > > > 61 >70 > >------------------------------------ >for() test with default IFS >------------------------------------ >'10' >'21' >'22' >'23' >'2444444444444444' >'30' >'31' >'50' >'61' >'70' >------------------------------------ >for() test with \r\n IFS >------------------------------------ >'10' >' 21 22 23 2444444444444444' >'30 31' >'50' >' 61' >'70' >------------------------------------ >pipe and read test with default IFS >------------------------------------ >'10' '' >'21' '22 23 2444444444444444' >'30' '31' >'' '' >'50' '' >'' '' >'' '' >'61' '' >'70' '' >'' '' >------------------------------------ >pipe and read test with \r\n IFS >------------------------------------ >'10' '' >' 21 22 23 2444444444444444' '' >'30 31' '' >'' '' >'50' '' >'' '' >'' '' >' 61' '' >'70' '' >'' '' >------------------------------------ >stdin read file with default IFS >------------------------------------ >'111' '22222' >'file' '' >'foo' '' >------------------------------------ >stdin read file with \r\n IFS >------------------------------------ >'111 22222' '' >' file' '' >'foo' '' >------------------------------------ >single line read with default IFS >------------------------------------ >'some' 'foo' 'bar comment' >------------------------------------ >single line read with default IFS >------------------------------------ >'some foo bar comment' '' '' > >external variable test: '' ========================================

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