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1319.Advanced search and replace -- How to remove the first occurrance of duplicated words in each line?

User: Dilip -- 2015-10-18          << 1318  1320 >>
Hits: 1463
Type: Advanced search and replace   
Search all Advanced search and replace examples
I have Tab separated text file 
mercedes benz by benz benz 
I want to replace the word found in the first column that matches with the  
second column and replace it with nothing for only one time. 
Find with Chars (Replace Unit) and Line (Replace Scope) 
Replace with Pattern 
But this removes all matches found in the second column but I want only  
replacement with nothing only once.
Input Sample:
mercedes benz by benz benz
Output Sample:
mercedes by benz benz
Hint: You need to Download and install "Replace Pioneer" on windows platform to finish following steps.
1. ctrl-o open text file 
2. ctrl-h open 'replace' dialogue 
* set 'replace unit' to 'Line' 
* set 'replace with pattern' to: 
3. click 'replace', done.

Screenshot 1:  Replace_Window

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Check Demo of Advanced search and replace
duplicated words  matches  occurrance  replacement  duplicated  found  second column  mer  separate  first column  remove second line  word replace one time only  remove text first word  remove first column  only one column  remove first word  text replacement  first and second words