how to get a batch file to accept input from a txt file?

How to get a batch file to accept input from a txt file?

In a batch file, you can use the < operator to redirect input from a text file. Here's a simple example:

Assuming you have a batch file named process.bat, and you want it to accept input from a text file named input.txt. The content of input.txt might be something like this:

parameter1 parameter2 parameter3

Now, your process.bat file could look like this:

@echo off set /p param1=<input.txt set /p param2=<input.txt set /p param3=<input.txt echo Parameters from input.txt: echo Parameter 1: %param1% echo Parameter 2: %param2% echo Parameter 3: %param3%

In this example, set /p is used to read input from the text file. The batch file reads each line sequentially, assigning the values to variables (param1, param2, param3 in this case). Modify the script based on the structure of your input file.

To execute the batch file and use the input from input.txt, run the following command in the command prompt:

process.bat < input.txt

This way, the input from input.txt is redirected to the standard input of the batch file.

Examples

  1. "Batch file read input from text file"

    • Description: General search for reading input from a text file in a batch file.
    • Code:
      @echo off set /p variable=<input.txt echo Input from file: %variable%

  2. "Batch file loop through lines in text file"

    • Description: Searches for looping through each line in a text file in a batch file.
    • Code:
      @echo off for /f "delims=" %%a in (input.txt) do ( echo Line: %%a )

  3. "Batch file read specific line from text file"

    • Description: Focuses on reading a specific line from a text file in a batch file.
    • Code:
      @echo off set /a line_number=5 setlocal enabledelayedexpansion for /f "delims=" %%a in ('findstr /n "^" input.txt ^| findstr "^%line_number%:"') do ( set "line=%%a" set "line=!line:*:=!" echo Line %line_number%: !line! ) endlocal

  4. "Batch file read multiple values from text file"

    • Description: Looks into reading multiple values from a text file in a batch file.
    • Code:
      @echo off setlocal enabledelayedexpansion for /f "tokens=1,2" %%a in (input.txt) do ( set "value1=%%a" set "value2=%%b" echo Values: !value1!, !value2! ) endlocal

  5. "Batch file read and parse CSV from text file"

    • Description: Investigates reading and parsing CSV data from a text file in a batch file.
    • Code:
      @echo off setlocal enabledelayedexpansion for /f "tokens=1,2,3 delims=," %%a in (input.csv) do ( set "column1=%%a" set "column2=%%b" set "column3=%%c" echo Columns: !column1!, !column2!, !column3! ) endlocal

  6. "Batch file read lines until specific value"

    • Description: Searches for reading lines from a text file in a batch file until a specific value is encountered.
    • Code:
      @echo off set "search_value=END" setlocal enabledelayedexpansion for /f "delims=" %%a in (input.txt) do ( set "line=%%a" echo Line: !line! if /i "!line!"=="%search_value%" ( echo Found %search_value%! Exiting loop. exit /b ) ) endlocal

  7. "Batch file read and process lines with specific condition"

    • Description: Focuses on reading and processing lines from a text file in a batch file based on a specific condition.
    • Code:
      @echo off setlocal enabledelayedexpansion for /f "delims=" %%a in (input.txt) do ( set "line=%%a" if "!line:~0,5!"=="Start" ( echo Processing: !line! rem Add your processing logic here ) ) endlocal

  8. "Batch file read input file as command line arguments"

    • Description: Investigates reading an input file and using its contents as command line arguments in a batch file.
    • Code:
      @echo off set /p arguments=<input.txt call your_script.bat %arguments%

  9. "Batch file read and store entire file content"

    • Description: Searches for reading and storing the entire content of a text file in a variable in a batch file.
    • Code:
      @echo off setlocal enabledelayedexpansion set "content=" for /f "delims=" %%a in (input.txt) do ( set "line=%%a" set "content=!content!!line!" ) echo Entire Content: !content! endlocal

  10. "Batch file read and replace text in file"

    • Description: Looks into reading a text file in a batch file and replacing specific text.
    • Code:
      @echo off setlocal enabledelayedexpansion set "search=old_text" set "replace=new_text" set "output_file=output.txt" (for /f "delims=" %%a in (input.txt) do ( set "line=%%a" set "line=!line:%search%=%replace%!" echo !line! )) > %output_file% endlocal

More Tags

file-handling html-encode csom zsh-completion int full-text-search database-administration asp.net-core-tag-helpers sql ihttphandler

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