Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: SED: Can't Repeat Search Character in SED Output
Top Forums UNIX for Dummies Questions & Answers SED: Can't Repeat Search Character in SED Output Post 302353315 by skmdu on Tuesday 15th of September 2009 05:52:19 AM
Old 09-15-2009
Hope this works for you... Slight modification from your solution:
Code:
Input:
<MY_BIG_TAG>This_is_a_test</MY_BIG_TAG>

Code:
sed '
s/\(<[^>]*>\)\([^>]*\)\(<[^>]*>\)/\1\n\2\3/g 
:loop
s/\n\([^<_]*\)_/\1_Q\n/g 
/\n[^<_]*_/b loop
s/\n//g' a

Output:
<MY_BIG_TAG>This_Qis_Qa_Qtest</MY_BIG_TAG>

Explanation :

1. s/\(<[^>]*>\)\([^>]*\)\(<[^>]*>\)/\1\n\2\3/g
This replaces like <MY_BIG_TAG>\nThis_is_a_test<MY_BIG_TAG>
2. starts loop
3. After \n till < arrives, substitute all underscore to _Q
4. Again checks if the same pattern appears, if it is, go through the loop again.
5. Atlast replace \n with the empty ( which we replaced in line 1).
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Use sed to delete a character

I built a 12 million record file and made a mistake, one field is 1 character too long. The record is 40 bytes and ends always in 999. I am trying to delete the 37 character in each record. Is this possible without doing a cut and paste. (1 Reply)
Discussion started by: bthomas
1 Replies

2. Shell Programming and Scripting

repeat character with printf

It's all in the subject. I try to figure out how to repeat a character a number of time with printf. For example to draw a line in a script output. Thks (13 Replies)
Discussion started by: ripat
13 Replies

3. Shell Programming and Scripting

use SED to replace repeat statements

Hi I need to write a script that read a input file that had same statement repeatedly to replace only 2nd & 5th time repeated statements (ex: This is UNIX forum) with another statement ( UNIX forum threads in Shell programming) with out modifying 1st,3,4th repeated statements. I am planning to do... (2 Replies)
Discussion started by: watsup
2 Replies

4. Shell Programming and Scripting

sed to delete character 0 only when it's on its own?

Hi all I am trying to get my head around doing the following.... I have an input field that could contain either a number a blank field or a whitespace field. What I want to do is delete a 0 (zero) if it's on its own or leading the number. So:- \t0 delete the zero 0 delete the... (8 Replies)
Discussion started by: Bashingaway
8 Replies

5. Shell Programming and Scripting

In Sed how can I replace starting from the 7th character to the 15th character.

Hi All, Was wondering how I can do the following.... I have a String as follows "ACCTRL000005022RRWDKKEEDKDD...." This string can be in a file called tail.out or in a Variable called $VAR2 Now I have another variable called $VAR1="000004785" (9 bytes long), I need the content of... (5 Replies)
Discussion started by: mohullah
5 Replies

6. Shell Programming and Scripting

sed help - search/copy from one file and search/paste to another

I am a newbie and would like some help with the following - Trying to search fileA for a string similar to - AS11000022010 30.4 31.7 43.7 53.8 60.5 71.1 75.2 74.7 66.9 56.6 42.7 32.5 53.3 I then want to replace that string with a string from fileB - ... (5 Replies)
Discussion started by: ncwxpanther
5 Replies

7. Shell Programming and Scripting

Sed: delete on each line before a character and after a character

Hi there, A total sed noob here. Is there a way using sed to delete everything before a character AND after another character on each line in a file? The deletion should also delete the indicating characters(here: an opening and a closing parenthesis). The original file would look like... (3 Replies)
Discussion started by: bnbsd
3 Replies

8. Shell Programming and Scripting

sed searches a character string for a specified delimiter character, and returns a leading or traili

Hi, Anyone can help using SED searches a character string for a specified delimiter character, and returns a leading or trailing space/blank. Text file : "1"|"ExternalClassDEA519CF5"|"Art1" "2"|"ExternalClass563EA516C"|"Art3" "3"|"ExternalClass305ED16B8"|"Art9" ... ... ... (2 Replies)
Discussion started by: fspalero
2 Replies

9. Shell Programming and Scripting

awk sed to repeat every character on same position from the upper line replacing whitespace

Hello is it possible with awk or sed to replace any white space with the previous line characters in the same position? I am asking this because the file I have doesn't always follow a pattern. For example the file I have is the result of a command to obtain windows ACLs: icacls C:\ /t... (5 Replies)
Discussion started by: nakaedu
5 Replies

10. Shell Programming and Scripting

How to repeat a character in a field if it's a single character?

I have a csv dataset like this : C,rs18768 G,rs13785 GA,rs1065 G,rs1801279 T,rs9274407 A,rs730012 I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same) CC,rs18768 GG,rs13785 GA,rs1065 GG,rs1801279 TT,rs9274407... (7 Replies)
Discussion started by: nengcheng
7 Replies

LEARN ABOUT DEBIAN

cw

CW(7)							 Miscellaneous Information Manual						     CW(7)

NAME

       CW - the international Morse code

DESCRIPTION

       CW  is  an  abbreviation for "continuous wave", the commonly used technical term for Morse code communication.  A basic knowledge or under-
       standing of Morse code is a requirement for Radio Amateurs and Marine Radio Operators in many parts of the world.

   MORSE CODE TIMINGS
       In Morse code, a dot or dash is referred to as an element.  The basic timing unit is the dot period.  This is the time taken to send a dot,
       not  including  any space before or after the dot.  The lengths of all other elements are then derived from this basic unit, using the fol-
       lowing rules:

	      The duration of a dash is three dots.

	      The time between each element (dot or dash) is one dot length.

	      The space between characters is three dot lengths.

	      The space between words is seven dot lengths.

       The following formula calculates the dot period in microseconds from the Morse code speed in words per minute:

	      dot period = ( 1200000 / speed )

       This formula arises from the use of the word PARIS as a 'standard' word for calibrating Morse code speed.  PARIS is 50 units long when sent
       in Morse code.  Analysis of English plain-text indicates that the average word is 50 units, including spaces.

   MORSE CODE CHARACTERS
       The following list shows the IS0 8859-1 (Latin-1) characters that have commonly understood representations in Morse code:

	      ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"$()+-./:;=?_@ and space

       In addition, following ISO 8859-1 and ISO 8859-2 accented characters are also part of the generally accepted international Morse code:

	      UACOEEANS (S with cedilla),  (Z with caron/hacek),

       Finally, libcw adds the following ASCII characters as extensions to single character procedural signals:

	      <>!&^~

   MORSE CODE CHARACTER TABLES
       The  following  table  shows  the Morse code equivalents for the ISO 8859-1, accented ISO 8859-1, and accented ISO 8859-2 characters above.
       The ASCII portion of this table is taken from the ARRL Handbook, and the accented extensions from various other sources:

       Ch   Code     Ch   Code	   Ch	Code	  Ch   Code
       -------------------------------------------------------
       A    .-	     B	  -...	   C	-.-.	  D    -..
       E    .	     F	  ..-.	   G	--.	  H    ....
       I    ..	     J	  .---	   K	-.-	  L    .-..
       M    --	     N	  -.	   O	---	  P    .--.
       Q    --.-     R	  .-.	   S	...	  T    -
       U    ..-      V	  ...-	   W	.--	  X    -..-
       Y    -.--     Z	  --..

       0    -----    1	  .----    2	..---	  3    ...--
       4    ....-    5	  .....    6	-....	  7    --...
       8    ---..    9	  ----.

       "    .-..-.   '	  .----.   $	...-..-   (    -.--.
       )    -.--.-   +	  .-.-.    ,	--..--	  -    -....-
       .    .-.-.-   /	  -..-.    :	---...	  ;    -.-.-.

       =    -...-    ?	  ..--..   _	..--.-

       Ch	       Code    Ch		  Code
       -------------------------------------------------
       U	       ..--    A		  .-.-
       C	       -.-..   O		  ---.
       E	       ..-..   A		  .-..-
       A	       .--.-   N		  --.--
       S (S+cedilla)   ----	(Z+caron/hacek)   --..-

       In addition to the above standard characters, the following characters are conventionally used for punctuation and  procedural  signals	as
       follows:

       Ch   Code     Ch   Code	   Ch	Code	  Ch   Code
       -------------------------------------------------------
       "    .-..-.   '	  .----.   $	...-..-   (    -.--.
       )    -.--.-   +	  .-.-.    ,	--..--	  -    -....-
       .    .-.-.-   /	  -..-.    :	---...	  ;    -.-.-.
       =    -...-    ?	  ..--..   _	..--.-	  @    .--.-.

       and the following are non-conventional extensions implemented by libcw:

       Ch   Code     Ch   Code	    Ch	 Code	 Ch   Code
       -----------------------------------------------------
       <    ...-.-   >	  -...-.-   !	 ...-.	 &    .-...
       ^    -.-.-    ~	  .-.-..

       An alternative view of punctuation and procedural signals is as combination Morse characters:

       Ch   Prosig	Ch   Prosig   Ch   Prosig   Ch	 Prosig
       ---------------------------------------------------------
       "    [AF]	'    [WG]     $    [SX]     (	 [KN]
       )    [KK]	+    [AR]     ,    [MIM]    -	 [DU]
       .    [AAA]	/    [DN]     :    [OS]     ;	 [KR]
       =    [BT]	?    [IMI]    _    [IQ]     @	 [AC]
       <    [VA],[SK]	>    [BK]     !    [SN]     &	 [AS]
       ^    [KA]	~    [AL]

NOTES

       Despite	the fact that this manual page constantly and consistently refers to Morse code elements as dots and dashes, DO NOT think in these
       terms when trying to learn Morse code.  Always think of them as 'dit's and 'dah's.

SEE ALSO

       Man pages for libcw(3,LOCAL), cw(1,LOCAL), cwgen(1,LOCAL), cwcp(1,LOCAL), and xcwcp(1,LOCAL).

								 CW Tutor Package							     CW(7)
All times are GMT -4. The time now is 04:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy