sed 0 9
Solution using GNU grep : $ grep -Po '[0-9]+(?=mK)' file 5160 025160 425460. Explanation: -o show only the part of the line that matches., The [0-9]* is not useless; it matches any number (0-9) that show up before the even number range ( [02468] ). This is to take into account ..., Note that your second attempt is equivalent to sed "s/[0-9]-+/h/" . Here + means one or more matches, meaning it won't match the empty string ...,正規表示式是組成「樣式」的基本語法，而「樣式」是運用sed 和awk 必備的知 ... [0-9]. 一個數字。 [^A-Z]. 除了大寫字母之外的一個字元。 [^a-zA-Z]. 一個非英文字母的字 ... ,[dywang@dywmac ~]$ sed '/192-.168-.122-.[0-9]-1,3-}/d' .ssh/known_hosts - | grep 192.168.122 --color; 關鍵符號 + - * / 的取代，使用雙引號時，減號要使用兩個反 ... , Your file starts with a UTF-8 byte order mark. It is unicode symbol U+FEFF which is encoded as three bytes in UTF-8. Those three bytes show ..., The regular expression [^0-9] means "any character that is not a digit", and the sed command s/[^0-9]//g means "replace any non-digit character ..., SED單行腳本快速參考（Unix 流編輯器） 2005年12月29日 英文標題：USEFUL .... gsed ':a;s/B[0-9]3}>/,&/;ta' # GNU sed sed -e :a -e 's/(.,如是輕度的使用者不想浪費太多的時間,參考sed 基本用法和 awk 基本用法應 .... sed '2,/The/ s/[0-9]/#/g' re.txt ←第二行開始到符合〝The〞那行之間任何數字改為字 ... , 例如vi, grep, awk ,sed 等等工具，因為她們有支援正規表示法， 所以，這些工具就可以 .... [:alnum:] 代表英文大小寫字元及數字，亦即0-9, A-Z, a-z.
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 sed 0 9 相關參考資料
Return last [0-9]6} from a string with sed - Stack Overflow
Solution using GNU grep : $ grep -Po '[0-9]+(?=mK)' file 5160 025160 425460. Explanation: -o show only the part of the line that matches. https://stackoverflow.com sed - effect of [0-9]* in a regular expression - Unix & Linux ...
The [0-9]* is not useless; it matches any number (0-9) that show up before the even number range ( [02468] ). This is to take into account ... https://unix.stackexchange.com sed - Why does [0-9]* match where there aren't any digits? - Unix ...
Note that your second attempt is equivalent to sed "s/[0-9]-+/h/" . Here + means one or more matches, meaning it won't match the empty string ... https://unix.stackexchange.com sed 和awk 入門
正規表示式是組成「樣式」的基本語法，而「樣式」是運用sed 和awk 必備的知 ... [0-9]. 一個數字。 [^A-Z]. 除了大寫字母之外的一個字元。 [^a-zA-Z]. 一個非英文字母的字 ... http://www.delightpress.com.tw sed 與正規表示法
[dywang@dywmac ~]$ sed '/192-.168-.122-.[0-9]-1,3-}/d' .ssh/known_hosts - | grep 192.168.122 --color; 關鍵符號 + - * / 的取代，使用雙引號時，減號要使用兩個反 ... https://dywang.csie.cyut.edu.t text processing - sed -e 's^[0-9]' does not work for the first ...
Your file starts with a UTF-8 byte order mark. It is unicode symbol U+FEFF which is encoded as three bytes in UTF-8. Those three bytes show ... https://unix.stackexchange.com What does sed 's[^0-9]*g' command mean in unix? - Unix & Linux ...
The regular expression [^0-9] means "any character that is not a digit", and the sed command s/[^0-9]//g means "replace any non-digit character ... https://unix.stackexchange.com [轉貼] SED單行腳本快速參考@ 胖虎的祕密基地:: 痞客邦::
SED單行腳本快速參考（Unix 流編輯器） 2005年12月29日 英文標題：USEFUL .... gsed ':a;s/B[0-9]3}>/,&/;ta' # GNU sed sed -e :a -e 's/(. http://idobest.pixnet.net 阿旺的Linux 開竅手冊-sed & awk
如是輕度的使用者不想浪費太多的時間,參考sed 基本用法和 awk 基本用法應 .... sed '2,/The/ s/[0-9]/#/g' re.txt ←第二行開始到符合〝The〞那行之間任何數字改為字 ... http://wanggen.myweb.hinet.net 鳥哥的Linux 私房菜-- 第十一章、正規表示法與文件格式化處理
例如vi, grep, awk ,sed 等等工具，因為她們有支援正規表示法， 所以，這些工具就可以 .... [:alnum:] 代表英文大小寫字元及數字，亦即0-9, A-Z, a-z. http://linux.vbird.org |