[Batch] Save and read vars to config on disk

hearywarlot · Aug 15, 2015

This is a batch script which can be used to save or read variables to/from a config file.
This is useful incase you need to save userinput on a removeable disk or need to save environmental vars but can not use setx, for example XP.

Usage:
You can read variables by calling the script with parameters
The syntax would be: confread.cmd [LABEL] [VAR] [FILE]

Example reading variables:
Code:
SET "FILE=%~dp0\batchconfig.conf"

CALL confread username USR "%FILE%"
CALL confread password PSW "%FILE%"
CALL confread additional-data ADD "%FILE%"

IF defined USR (
    ECHO Username=!USR!
)
IF defined PSW (
    ECHO Password=!PSW!
)
IF defined ADD (
    ECHO Additional data=!ADD!
)
Saving is the same beast.
The Syntax would be: confsave.cmd [LABEL] [VAR] [FILE]

Example saving variables:
Code:
SET "FILE=%~dp0\batchconfig.conf"

SET /p "USR=Username:"
SET /p "PSW=Password:"
SET /p "ADD=Additional data:"

CALL confsave username USR "%FILE%"
CALL confsave password PSW "%FILE%"
CALL confsave additional-data ADD "%FILE%"
Notes:

You can not save the character '!' because 'ENABLEDELAYEDEXPANSION' will cause the script to use that character for vars.

Using the '=' Character breaks the config file. The vars can still be read and saved normally, but you will get errors.

If you noticed, you should give the variables names themself instead of the contents.

This script can save any data, but is still has adhere to the limits of CMD/Batch.

Code:
Filename: confread.cmd
Code:
@ECHO OFF
:CONFR
SETLOCAL ENABLEDELAYEDEXPANSION
IF not "%~3"=="" (
    SET "FILE=%~3"
)
IF exist "!FILE!" (
    FOR %%A in ("!FILE!") do (
        IF not %%~zF equ 0 (
            FOR /F "delims=" %%B in ('findstr /p "%~1" "!FILE!"') do (
                SET "LNA=%%B"
                SET "LNB=!LNA:%~1=!"
                SET "LNC=!LNB:~3!"
            )
        )
    )
)
( ENDLOCAL
    IF not "%~2"=="" (
        SET "%~2=%LNC%"
    )
)
EXIT /B 0
Filename: confsave.cmd
Code:
@ECHO OFF
:CONFS
SETLOCAL ENABLEDELAYEDEXPANSION
IF not "%~3"=="" (
    SET "FILE=%~3"
)
IF exist "!FILE!" (
    (    FOR /F "delims= usebackq" %%A in ("!FILE!") do (
            SET "LNA=%%A"
            SET "LNB=!LNA:* =!"
            IF not "!LNB!"=="= " (
                SET "LNC=!LNB:* =!"
                CALL SET "LND=%%LNA:!LNC!=%%"
                IF "!LND!"=="%~1 = " (
                    SET "LNS=1"
                    IF not "!%~2!"=="" (
                        ECHO(%~1 = !%~2!
                    )
                ) else (
                    ECHO(%%A
                )
            )
        )
        IF not !LNS! equ 1 (
            IF not "!%~2!"=="" (
                ECHO(%~1 = !%~2!
            )
        )
    ) > "!FILE!.new"
) else (
    IF not "!%~2!"=="" (
        ECHO(%~1 = !%~2!
    ) > "!FILE!.new"
)
MOVE /y "!FILE!.new" "!FILE!" >NUL 2>&1
ENDLOCAL
EXIT /B 0
I hope anyone might find it useful, i created it when i was bored :>
If possible, you might be better off using a VBS or better solution to save vars to disk.

[Batch] Save and read vars to config on disk

hearywarlot MDL Member