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DOS批处理 & 脚本技术（批处理室） » Please clarify the specific content or context of "删掉所有重复行" in the batch processing. Because there are different implementation methods for deleting different types of duplicate lines in different scenarios. For example, if it is a text file with lines of text, the general idea is to read line by line, store it in a temporary variable or array, and then judge whether it has been stored before. If not, it is written to a new file. But the specific batch code needs to be further determined according to the actual situation. Please provide more details.

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Floor16　huzixuan	Posted 2007-04-21 07:37
高级用户　Posts 219　Credits 537　From 芜湖
for /f "delims=" %%i in (test.txt) do if not defined %%i set %%i=a&echo %%i

Floor17　everest79	Posted 2007-04-21 10:05
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Floor18　waynebeat	Posted 2007-04-21 10:52
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Floor19　scriptor	Posted 2007-09-26 14:20
银牌会员　Posts 555　Credits 1,187
Originally posted by everest79 at 2007-4-21 04:41: My this one can only delete the repeated lines a a b c d a b c d Cannot a a b c d b c d src.txt is your original text, after execution, dst.txt is the filtered text. Switch the cmd to the directory where src.txt is saved, then execute the above line Hahaha.... Finally found it What I want is this Give a thumbs up....

Floor20　chishingchan	Posted 2007-09-26 22:22
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The code on floor 16 doesn't work D:\DOCUME~1\ADMINI~1>for /f "delims=" %i in (test.txt) do if not defined %i set %i=a&echo %i D:\DOCUME~1\ADMINI~1>if not defined aa set aa=a & echo aa D:\DOCUME~1\ADMINI~1>if not defined bb set bb=a & echo bb D:\DOCUME~1\ADMINI~1>if not defined cc set cc=a & echo cc D:\DOCUME~1\ADMINI~1>if not defined dd set dd=a & echo dd D:\DOCUME~1\ADMINI~1>if not defined bb set bb=a & echo bb D:\DOCUME~1\ADMINI~1>if not defined cc set cc=a & echo cc D:\DOCUME~1\ADMINI~1>if not defined ee set ee=a & echo ee D:\DOCUME~1\ADMINI~1>

Floor21　yoyodos	Posted 2007-09-26 23:26
初级用户　Posts 59　Credits 128
：:) @echo off setlocal enabledelayedexpansion cd.>temp.txt for /f "tokens=* delims=:" %%i in ('findstr /n "." test.txt') do ( echo %%i>>temp.txt ) for /f "tokens=1 delims=:" %%m in (temp.txt) do ( for /f "tokens=1* delims=:" %%x in ('findstr /v /c:"%%m:" temp.txt') do ( if "%%n"=="%%y" ( set str=%%y !str! ) ) ) findstr /v "!str!" test.txt pause [ Last edited by yoyodos on 2007-9-26 at 11:28 PM ]

Floor22　terse	Posted 2007-09-26 23:52
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Originally posted by chishingchan at 2007-9-26 22:22: The code on floor 16 doesn't work D:\DOCUME~1\ADMINI~1>for /f "delims=" %i in (test.txt) do if not defined %i set %i=a&echo %i D:\DOCUME~1\ADMINI~1>if not defined aa set aa=a & ech ... The one on floor 16 should be okay! @echo off for /f "delims=" %%i in (test.txt) do if not defined %%i set %%i=a&echo %%i>>test2.txt pause

Floor23　bray	Posted 2008-08-28 17:42
新手上路　Posts 7　Credits 14
The sentence "set %%i=a" is used to set the variable represented by %%i to the value "a". In the context of this `for /f` loop, it's likely part of a process to initialize or assign a default value to each variable that is read from the `test.txt` file.

Floor24　bray	Posted 2008-08-28 18:05
新手上路　Posts 7　Credits 14
Originally posted by bray at 2008-8-28 05:42 PM: What is the use of `set %%i=a`? Also, if you just want to delete adjacent duplicate lines, how to do it? For example: aaa aaa bbb aaa aaa aaa ccc ddd ccc The desired result after processing is: aaa bbb aaa ccc ddd ccc

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