中国DOS联盟

There is an A.TXT file. When finding JKLJHLL in it, delete the lines containing the string JKLJHLL (case-insensitive).

@echo off

for /f "delims=" %%i in ('findstr /i /v /c:JKLJHLL a.txt') do (

    echo %%i>>temp.txt

)

start temp.txt

@echo off

for /f "delims=" %%i in ('findstr /i /v /c:JKLJHLL a.txt') do (

    echo %%i>>temp.txt

)

start temp.txt

I wonder if this is the effect the poster requested...

　　Give it a thumbs up～～

　　findstr /v is clever～～

Originally posted by pengfei at 2006-10-18 05:21 AM:

@echo off

for /f "delims=" %%i in ('findstr /i /v / JKLJHLL a.txt') do (

    echo %%i>>temp.txt

)

start temp.txt

I wonder if this is the effect the poster requested...

Thank you!

findstr /ivc:"JKLJHLL" a.txt >b.txt

This is even stronger, I support it!!!

Originally posted by mountvol at 2006-10-12:07:
findstr /ivc:"JKLJHLL" a.txt >b.txt

OK, you can completely do without FOR here.

Originally posted by mountvol at 2006-10-18 11:07:
findstr /ivc:"JKLJHLL" a.txt >b.txt

Top~Gave you 6 points~: )

Searching "delete lines" only found this one post.
The problem I need to handle is a bit extreme. I need to compare the lines that are in file A but not in file B.
There are two TXT files, with more than 5000 lines (named A) and more than 2000 lines (named B) respectively.
If I use the above > method, wouldn't it be necessary to generate thousands of files?
And it doesn't seem to be efficient. Does anyone know if there is a better idea using P to handle it?

Originally posted by pillow at 2007-12-12 15:34:
Searching "delete line" only finds this one post,
The problem I need to handle is a bit extreme. I need to compare the lines that are in file A but not in file B.
There are two TXT files, with more than 5000 lines (named A) and 20 ...

Use B + A ------ Use delete duplicate lines ------ Find the number of marked lines between B and A ------ Use more +n to extract

I haven't used this command yet, and I don't know how to!

After using it in my example, the error "FINDSTR: The search string is too long" is reported. What should I do?

Finding Chinese characters is really slow

It's professional enough, I can't understand.