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DOS批处理 & 脚本技术（批处理室） » How to use the for command to extract the last line of text content as a variable

Floor1　26933062	Posted 2006-12-22 12:38
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The content of text a is as follows 0 1 2 3 4 5 Purpose: Run the following batch processing, %i% is equal to the content of the last line of document a, @echo off set /a i=%i%+1 echo %i%

Floor3　namejm	Posted 2006-12-22 12:51
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``` @echo off for /f %%i in (a.txt) do set i=%%i set /a i=%i%+1 echo %i% [ Last edited by namejm on 2006-12-22 at 12:47 PM ]

Floor4　26933062	Posted 2006-12-22 13:30
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Thanks to the user on floor 3, it seems that you need to add /f after for. Also, thanks to the brother on floor 2. Why didn't you all add /f? According to what you said, what's displayed is the file name a.txt instead of the last line of the document content. Did I not make my question clear?

Floor5　zh159	Posted 2006-12-22 14:09
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Just wrote it casually, forgot to add "/f"

Floor6　namejm	Posted 2006-12-23 01:48
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Hehe, I wrote it casually based on the 2F, but unexpectedly made a junior mistake.

Floor7　lxmxn	Posted 2006-12-23 03:33
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Originally posted by namejm at 2006-12-21 23:51: @echo off for /f %%i in (a.txt) do set i=%%i set /a i=%i%+1 echo %i% [ Last edited by namejm on 2006-12-22 at 12:47 PM ] 　　Don't understand why it's written like this. What's the purpose of adding 1? @echo off for /f "delims=" %%i in (a.txt) do set i=%%i echo %i% pause

Floor8　ccwan	Posted 2006-12-23 03:45
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Adding 1 is the purpose that the LZ's batch processing needs to accomplish.

Floor9　lxmxn	Posted 2006-12-23 03:47
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Oh, I thought it was only extracting the last row. I read the question wrong.

Floor10　Li103Z	Posted 2008-01-01 18:46
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Ask the expert, if I want to extract the elements of the first line and the second line in front, how to do it with the program

Floor11　lxmxn	Posted 2008-01-02 13:46
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Originally posted by Li103Z at 2008-1-1 18:46: Ask the experts, if I want to extract the elements of the first and second lines, how to do it with the program Search for "ReadLine".