中国DOS联盟

Read multiple text files line by line into a new file (that is, merging text files) (requires that empty lines, leading and trailing blanks in the file can be output as they are). I wrote one but the empty lines are ignored, and when encountering blank lines containing spaces or tabs, it writes "echo 已经关闭" to the file. I don't know how to solve these problems?

@echo off
setlocal EnableDelayedExpansion REM Enable delayed variables=%
dir/b/o:n *.txt>filelist.tmp REM Get file list=%
type.>HBfile.txt REM First create the result file=%
for /f "usebackq delims=" %%a in ("filelist.tmp") do ( REM Get a file name=%
set filename=%%a REM Assign the file name to the variable=%
call :sub !filename! REM Call the subroutine with parameters=%
)
del filelist.tmp REM Delete the temporary file after completion=%
goto :eof REM Exit=%
:sub
for /f "usebackq delims=" %%i in ("%1") do (
echo %%i>>HBfile.txt) REM Write the obtained content to the result file=%
echo.>>HBfile.txt REM Add a blank line after each file is completed=%
goto :eof REM Exit subroutine=%

Use the command "copy HBfile.txt+newfile.txt HBfile.txt"

I think:
1. You can use copy copy a.txt +b.txt+c.txt+...........+n.txt m.txt
2. Use find for %%i in (a,b,c,................,n) do (
for /f %%j "skip=2 tokens=*" in ('find /v "******" %%i.txt') do (
echo %%j >>m.txt
)
)

Last edited by zw19750516 on 2008-3-29 at 08:52 PM ]

@echo off
for /f "delims=" %%i in ('dir /s/b/a-d *.txt') do (more "%%i" >>合并.txt)
pause

Thanks everyone, I overcomplicated the problem.
My original intention was to create a batch script for merging and splitting text files. When merging, I want to insert a separator line between each file so that it can be used as a marker when splitting later. This marker could be something like:
-----------------*.TXT-------------------
Later, when splitting, I first extract the file name from this marker, then write the next part of the content into this file, thus completing the splitting of one file. In this way, after merging multiple files and then splitting them, they can be completely restored to their original state.

However, I haven't written this batch script yet....
Because splitting files seems to be more difficult?

Last edited by zzhh612 on 2008-3-29 at 10:37 PM ]

@echo off
for /f "delims=" %%i in ('dir /s/b/a-d *.txt') do (
echo -----------------%%~nxi-------------------
more "%%i"
echo -----------------%%~nxi-------------------
)>>Merge.txt

Thanks to balinger's code.

Your code meets my meaning, but I can't handle splitting it.
Mainly to extract the file name from it and extract the text between two markers, this must be read line by line.
This also involves the problem of empty lines and blank lines.

### Display text between two regular expressions (inclusive)
sed -n '/Iowa/,/Montana/p'

This should be able to extract the content between filenames, right?

There is a GNU tool called csplit that can implement complex text splitting. You can look for it.

The merging code of abcd is also good, but when there are many files, the running speed is much slower than that of balinger's code.

As for the splitting tool of Csplit, the application is not convenient. I just want to use common batch commands to realize the splitting of files. As for those relying on other third-party tools, because they are not commonly used in use, so I haven't considered them...

I wonder if it can be realized by common batch commands or VBSCRIPT batch processing?

Last edited by zzhh612 on 2008-3-30 at 01:19 AM ]

VBSCRIPT has strong character processing capabilities... Of course it can... Split

@echo off

for /f "delims=" %%i in ('dir /s/b/a-d *.txt') do (

     echo.########%%~nxi########

     more "%%i"

)>>合并.txt

pause

@echo off

for /f "tokens=1,2* delims=:#" %%i in ('more "合并.txt"^|findstr /n "########.*########"') do call :lp %%i "%%j"

   for /f "tokens=1* delims=:" %%a in ('findstr /n .* "合并.txt"') do (

      if %%a gtr %n% >>%x% echo/%%b

      )     

pause

goto :eof

:lp

for /f "tokens=1,2* delims=:#" %%i in ('more "合并.txt"^|findstr /n "########.*########"') do  if %%i gtr %1 set n=%%i&goto lp1 

:lp1

for /f "tokens=1* delims=:" %%a in ('findstr /n .* "合并.txt"') do (

    if %%a gtr %1 if %%a lss %n% >>%~2 echo/%%b

    )

    set x=%~2

goto :eof

Using P to handle special characters is not great

Merged file:

@echo off

for /f "delims=" %%i in ('dir /s/b/a-d *.txt') do (

     echo.########%%~nxi########

     more "%%i"

)>>合并.txt

pause

Split file:

@echo off

for /f "tokens=1,2* delims=:#" %%i in ('more "合并.txt"^|findstr /n "########.*########"') do call :lp %%i "%%j"

   for /f "tokens=1* delims=:" %%a in ('findstr /n .* "合并.txt"') do (

      if %%a gtr %n% >>%x% echo/%%b

      )     

pause

goto :eof

:lp

for /f "tokens=1,2* delims=:#" %%i in ('more "合并.txt"^|findstr /n "########.*########"') do  if %%i gtr %1 set n=%%i&goto lp1 

:lp1

for /f "tokens=1* delims=:" %%a in ('findstr /n .* "合并.txt"') do (

    if %%a gtr %1 if %%a lss %n% >>%~2 echo/%%b

    )

    set x=%~2

goto :eof

Terse's code is really good, which matches my original intention quite well. I tried it with 100 text files, and so far, I haven't found any errors.

It seems I still need to learn from you. I have ideas but lack the skills, haha..

find /V "" c:\*.txt

Please use the following instead: