start line - end line to output file (BAT script)

input.txt
it is a text file with 10 lines in it

one
two
three
four
five
six
seven
eight
nine
ten

i want to create a text file from line 3 to 7
it will be output.txt

three
four
five
six
seven

i want to know, how i can create a file that getting lines from another file with start line and end line arguments with a batch script?

it was just an example
i have a file with over 200 lines in it, i want to get 54 lines from it and make an output file

more command; you can skip lines so you can set a start line, i will skip 2 lines with this command, the output file starts with 3rd line, but i do not know how i can give an end line

more /e +2 input.txt > output.txt

three
four
five
six
seven
eight
nine
ten

To do it in a batch file you'd use a combination of the For command, a subroutine and a counter.

This will get you started -
For - SS64

Denis

thanks @Try3, i know the site, i am trying to understand them

Just to get you started, here is a demonstration batch file & a text file for it to read.
Simple example.zip
Unzip the two files to the same folder and just run the batch file. It will echo each line in the text file.

The batch file contents are [For-SimpleFileReading.bat]

Code:

:: This script reads and echoes each line in the designated SourceFile
:: This script copes with spaces and special characters being in the current folder path, in the SourceFile name and in the text of the SourceFile
:: Each line of the output continues to be protected against spaces and special characters and must be unless and until the text is proven to contain no spaces or special characters

:: This Echo Off command just allows the processing to be hidden and would often be used in real scripts.
:: The symbol at the start of the line stops the command itself being shown
:: It is currently 'remarked out' by preceding it with :: a pair of colons so the processing can be examined
:: @Echo Off
:: Simplifying the default prompt $p$g for ease of viewing the processing
prompt $g

:: Change folders to the one the batch file is in just to avoid, in this demo, having to set a full path for SourceFile
cd /d "%~dp0"

Set "SourceFile=File & Read.txt"
For /f  "usebackq tokens=*" %%X in ("%SourceFile%") do Call :Processing "%%X"
GoTo EndSimpleFileReadingDemo

:Processing 
:: Process each passed line
:: Protect each stage of processing and displaying variables with " so that special characters, such as &, do not cause it to fail
set ThisParameter=%*
::Now strip out the leading & trailing " that were added in passing the lines to protect them so leaving each original line unaltered
set "ThisParameter=%ThisParameter:~1%"
set "ThisParameter=%ThisParameter:~0,-1%"
:: Any further processing of the read line takes place here.  The echo is just used as an example.
:: ThisParameter must continue to be protected by " unless and until the text is proven to contain no spaces or special characters
echo "%ThisParameter%"
GoTo :eof

:EndSimpleFileReadingDemo
Pause during testing

For is such a sophisticated & powerful command that it takes a lot of studying and a lot of getting used to.
Show the built in help with this command For /?
For - SS64
For - MSLearn



Denis

1st Sep 2023 - I updated the batch file to include the protection of spaces and special characters that we discussed later on in this thread. I felt shamed into doing so because, after all this time, I found a non-fatal error in the batch file.
It's not my record though. Last year I found a bug in a script that I had been using since the 1990s. The bug was revealed by a particular combination of inputs that had simply never occurred before.

And here is a slightly more complicated example that includes using a line counter within the For looping
Simple example with line counter.zip

The batch file contents are [For-SimpleFileReadingWithCounter.bat]

Code:

:: This script reads and echoes each line in the designated SourceFile and it displays a count of the line number for each line
:: This script copes with spaces and special characters being in the current folder path, in the SourceFile name and in the text of the SourceFile
:: Each line of the output continues to be protected against spaces and special characters and must be unless and until the text is proven to contain no spaces or special characters

:: This Echo Off command just allows the processing to be hidden and would often be used in real scripts.
:: The symbol at the start of the line stops the command itself being shown
:: It is currently 'remarked out' by preceding it with :: a pair of colons so the processing can be examined
:: @Echo Off
:: Simplifying the default prompt $p$g for ease of viewing the processing
prompt $g

:: Change folders to the one the batch file is in just to avoid, in this demo, having to set a full path for SourceFile
cd /d "%~dp0"

:: Initialisation
::Set up a counter for use in the For looping
Set /a LineCounter=0

Set "SourceFile=File & Read.txt"
For /f  "usebackq tokens=*" %%X in ("%SourceFile%") do Call :Processing "%%X"
GoTo EndFileReadingCountingDemo

:Processing 
:: Increment the LineCounter
Set /a LineCounter=%LineCounter%+1
:: Process each passed line
:: Protect each stage of processing and displaying variables with " so that special characters, such as &, do not cause it to fail
set ThisParameter=%*
::Now strip out the leading & trailing " that were added in passing the lines to protect them so leaving each original line unaltered
set "ThisParameter=%ThisParameter:~1%"
set "ThisParameter=%ThisParameter:~0,-1%"
:: Any further processing of the read line takes place here.  The echo is just used as an example.
echo Line number %LineCounter% is - "%ThisParameter%"
GoTo :eof

:EndFileReadingCountingDemo
Pause during testing

To take specific action on particular line numbers will require use of If commands.
If - SS64

Denis

Also updated on 1 Sep 2023

@Matthew Wai @Try3 thanks for your replies, i will try them at night,

i have also found a created bat file working with command like that,
xxxx.bat input.txt -startline -endingline output.txt, trying to understand how it works
i will share it too here

Hello @Feuer,

Feuer said:

I have also found a created bat file working with command like that,
xxxx.bat input.txt -startline -endingline output.txt, trying to understand how it works.
I will share it too here

Yes, if you can post the code we can have a look at it.

Feuer said:

i have also found a created bat file working with command like that,
xxxx.bat input.txt -startline -endingline output.txt, trying to understand how it works

ateş,

Does this mean that extracting specified groups of lines is a fairly common requirement?
Please may I ask what job this will form part of [just out of interest]?

Denis