Batch variable inside of variable

Question

I've got a set of variables called p1 to p9
I've got 2 vars to set the range I'm interested in.
I want to list all the vars from minimum range +1 to the max.

It looks like that (and it won't work)

set currentvar=5
set maxvar=9
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result = %maxvar% - %currentvar%
echo Found %result% vars in the range.
:LOOP
if %currentvar% LSS %maxvar% (
set /a currentvar=%currentvar% + 1
echo %p %currentvar% % //IT WON'T WORK AND I DON'T KNOW HOW TO MAKE IT WORK...
goto LOOP
) else (
goto END
)
:END

The result I'd like to see:

fff

ggg 

hhh

iii

you marked a non-working answer as accepted.

Endoro
– Endoro

2013-11-07 00:09:47 +00:00
Commented Nov 7, 2013 at 0:09 — Endoro
– Endoro, Commented Nov 7, 2013 at 0:09

Endoro · Accepted Answer · 2013-11-06 23:50:27Z

3

this might work for you:

@ECHO OFF &SETLOCAL
set /a currentvar=5
set /a maxvar=9
set /a RangeStart=currentvar+1
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result=maxvar-currentvar
echo Found %result% vars in the range.
for /l %%a in (%RangeStart% 1 %maxvar%) do call echo(%%p%%a%%

answered Nov 6, 2013 at 23:50

Endoro

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Comments

Monacraft · Accepted Answer · 2013-11-06 23:15:32Z

-1

You need to Enabledelayedexpansion:

@echo off
Setlocal Enabledelayedexpansion
set currentvar=5
set maxvar=9
set p1=aaa
set p2=bbb
set p3=ccc
set p4=ddd
set p5=eee
set p6=fff
set p7=ggg
set p8=hhh
set p9=iii
set /a result = %maxvar% - %currentvar%
echo Found %result% vars in the range.
:LOOP
if %currentvar% LSS %maxvar% (
set /a currentvar=%currentvar% + 1
echo !p%currentvar%! &REM This is how you make a comment in batch
goto LOOP
) else (
goto END
)
:END
Endlocal

And that should do what you want to do. Also to make a comment use a new line and type :: or REM.

Mona

answered Nov 6, 2013 at 23:15

Monacraft

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2 Comments

user2962599 Over a year ago

Thank you very much. I didn't put any comments in batch in ages. I didn't knew that you can use ! to expand vars. That is exactly what I needed. You are awesome ;].

Endoro Over a year ago

this doesn't work. Inside a code block you can't access changed %variables%, eg. currentvar !

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