Regular expression: Difference between revisions

Regular expression (edit)

351 bytes added , 29 January 2014

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 ==== 方案4: sed ====
-參考 [http://stackoverflow.com/questions/1251999/sed-how-can-i-replace-a-newline-n unix - sed: How can I replace a newline? ]
-{{kbd | key=<nowiki>sed ':a;N;$!ba;s/\n/; /g' old.filename > new.filename</nowiki>}}
+{{kbd | key=<nowiki>sed 's/要被取代的字串/新的字串/g' old.filename > new.filename</nowiki>}}<ref>[http://linux.vbird.org/linux_basic/0330regularex.php#sed_replace 鳥哥的 Linux 私房菜 -- 正規表示法 (regular expression, RE) 與文件格式化處理]</ref>
+(1)要被取代的字串: :a;N;$!ba;s/\n
+(2)新的字串: ;
+{{kbd | key=<nowiki>sed ':a;N;$!ba;s/\n/; /g' old.filename > new.filename</nowiki>}} <ref>參考 [http://stackoverflow.com/questions/1251999/sed-how-can-i-replace-a-newline-n unix - sed: How can I replace a newline? ]</ref>
 === Find IP address ===