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Full Discussion: Regex question
Top Forums Shell Programming and Scripting Regex question Post 303023991 by boncuk on Wednesday 26th of September 2018 09:12:03 PM
Old 09-26-2018
hi Rudi .. sorry it was a typo. . 2nd wrong is not wrong. but 1st wrong is wrong.
I ran your command it selects nothing ?

Quote:
$ type a.txt
000000001000
433483433339
121121211100
167710000110
167735250310
167735260510
167735280710
167735301010
167735431010
167735451010
167750000010
167710101110
167730691110
167730611111
$
$ sed "/^[0-9]{8}(0[1357]|1[01])/!d" a.txt
$

------ Post updated at 09:12 PM ------

Quote:
In your regex, you want 00 in positions 9 and 10.
no i dont want to 00 in the 9th and 10th position ..i was not sure what 00 meant there.
what i want is simple .. i want to detect any records that contain 01,03,05,07,10 or 11 are in position 9th and 10th position.

Last edited by Don Cragun; 09-26-2018 at 10:21 PM.. Reason: Fix QUOTE tags.
 

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telecode(5)							File Formats Manual						       telecode(5)

NAME
telecode - A character encoding system (codeset) for Traditional Chinese DESCRIPTION
The Telecode codeset (called Mitac Telex in early versions of the operating system) consists of 2 character planes. Each character plane has 8836 character positions. In plane 1, standard characters occupy positions 0001 to 8045; the remaining 791 positions are for user- defined characters. In plane 2, standard characters occupy positions 0001 to 8489; the remaining 346 positions are for user-defined charac- ters. Telecode uses 2-byte values to represent characters on both planes. Plane 1 Character Encoding To differentiate plane 1 code from plane 2 code, the most significant bit (MSB) is set on in both bytes of a plane 1 character code. The following formula calculates the value of a plane 1 character from its position on the plane: 1st byte = M + 161 2nd byte = N + 161 - M x 94 In this formula, N is the position of the character and M = N / 94. For example, if a character is at position 2502 on plane 1, its encoding value is BBDB, which is calculated as follows: N = 2502, M = 2502/94 = 26 1st byte = 26 + 161 = 187 2nd byte = 2502 + 161 - 26 x 94 = 219 Plane 2 Character Encoding To differentiate plane 2 code from plane 1 code, the MSB of the first byte is set on and that of the second byte is set off for each plane 2 character code. The following formula calculates the value of a plane 2 character from its position: 1st byte = M + 161 2nd byte = N + 33 - M x 94 In this formula, N is the position of the character on the plane and M = N / 94. For example, if a character is at position 2502 on plane 2, its encoding value is BB5B, which is calculated as follows: N = 2502, M = 2502/94 = 26 1st byte = 26 + 161 = 187 2nd byte = 2502 + 33 - 26 x 94 = 91 Codeset Conversion The following codeset converter pairs are available for converting Traditional Chinese characters between telecode and other encoding for- mats. Refer to iconv_intro(5) for an introduction to codeset conversion. For more information about the other codeset for which telecode is the input or output, see the reference page specified in the list item. big5_telecode, telecode_big5 Converting from and to the Big-5 codeset: big5(5). Note that Big-5 encoding is equivalent to the Microsoft code-page format used on PCs for Traditional Chinese. You can therefore use these converters to convert Traditional Chinese characters between PC code page format and Telecode encoding format. For more infor- mation on how the operating system supports PC code pages, see code_page(5). dechanyu_telecode, telecode_dechanyu Converting from and to the DEC Hanyu codeset: dechanyu(5). eucTW_telecode, telecode_eucTW Converting from and to Taiwanese Extended UNIX Code: eucTW(5). Font Support for Telecode The operating system supports Telecode only through conversion to another codeset. SEE ALSO
Commands: locale(1) Others: ascii(5), big5(5), Chinese(5), code_page(5), dechanyu(5), dechanzi(5), eucTW(5), GBK(5), i18n_intro(5), i18n_printing(5), iconv_intro(5), l10n_intro(5), sbig5(5) telecode(5)
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