How to take data from a .txt file and save it in a .bat variable?-CodePudding

I've got a .txt file set up like:

Data1
Data2
Data3
Data4
Data5
(etc.)

Is there any way for me to get the first line of data and set is as a variable in a .bat file, after which it performs a task, and moves on to the next line?

Eg. Data 1 being used for a task, after which Data 2 is loaded for that same task, continuing down the list.

If that's not (easily) possible in a .bat file (through .txt data), how else would I do this (in a Python file, for example)?

CodePudding user response：

In bat: for multiple variables:

@echo off
setlocal enabledelayedexpansion

set count=0

for /f "tokens=*" %%x in (textfile.txt) do (
    set /a count =1
    set var[!count!]=%%x
)
echo %var[4]%
pause >nul

print variable 4 - echo %var[4]%

read file cotects into a variable:

for /f "delims=" %%x in (file.txt) do set Var=%%x
echo %var%

or:

set /p Var=file.txt
echo %Var%

This code will read the entire file into memory and remove all whitespace characters (newlines and spaces) from the end of each line:

with open(filename) as file:
    lines = file.readlines()
    lines = [line.rstrip() for line in lines]

This code will take each line and assign to different variable:

var1 = lines[0]
var2 = lines[1]

CodePudding user response：

Using python to create a .bat file seems like a huge workaround.

I would recommend rather using os.system and open running the commands one by one using read.

with open(txtfile,'r') as f:
    for line in f:
        os.system(line)

This will execute your .txt file row by row.

If you would rather create a bat file you can do:

with open(txtfile,'r') as f:
    with open(batfile,'w ') as bf:
        for line in f:    
            bf.write("echo "   line)
os.system(batfile)

You should probably consider exploring your options with subprocess as well.

CodePudding user response：

You can do it like that in batch file :

@echo off
(
    Set /p Var1=
    Set /p Var2=
    Set /p Var3=
    Set /p Var4=
    Set /p Var5=
)<test.txt
echo The variable has a value : "%Var1%"
echo The variable has a value : "%Var2%"
echo The variable has a value : "%Var3%"
echo The variable has a value : "%Var4%"
echo The variable has a value : "%Var5%"
pause