Adding variables

[PopPooB]

is there anyway to add variables in batchs and the command prompt

[bad_brain]

yeup, it's easy....to set a variable:

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set test=1234

this gives the variable test the value 1234

to check it:

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echo %test% 
1234            

take care that a variable in batch is using %variable% and not $variable like in *nix...

[PopPooB]

yeup, it's easy....to set a variable:

Code: Select all

set test=1234

this gives the variable test the value 1234

to check it:

Code: Select all

echo %test% 
1234            

take care that a variable in batch is using %variable% and not $variable like in *nix...

I MENT ADD LIKE %1%+%2%

i know the thing is

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set /a 1+1

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set /a variable=1+1

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echo %variable%
2

but i cant get something like this to work

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set /a variable=%variable1%+%variable2%

[bubzuru]

is this wot you mean

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@echo off

set first= 
set /p first= whats your firsname:

set second= 
set /p second= whats your second name:

echo your full name is %first% %second%

pause>null

if its not im sure i can help i used to do alot ov batch

[PopPooB]

is this wot you mean

Code: Select all

@echo off

set first= 
set /p first= whats your firsname:

set second= 
set /p second= whats your second name:

echo your full name is %first% %second%

pause>null

if its not im sure i can help i used to do alot ov batch

what does that have to do with addition

[bubzuru]

0o now i get your question and no i dont think batch has a function for math

[PopPooB]

0o now i get your question and no i dont think batch has a function for math

.....it does have a function for math

[bubzuru]

you cant add stuf together in batch
allz you can do is run dos commands

you want to make like a calculator rite if so you cant

[PopPooB]

you cant add stuf together in batch
allz you can do is run dos commands

set /a (equeation)

e.g. set /a 1+1 (will echo 2)
set /a two=1+1(will make %two%=2)

dont tell me what you can and can not do

[bubzuru]

i cant see wot your trying to do

wot are you trying to make ???????

[PopPooB]

i cant see wot your trying to do

wot are you trying to make ???????

IM TRYING TO ADD VARIABLES LIKE %VARIABLE1%+%VARIABLE2%

[bubzuru]

Code: Select all

set /a two=1+1

this will display 2 because the computer knows that 1 is a Integer so it can add them both together

but when you use this

Code: Select all

%VARIABLE1%+%VARIABLE2%

VARIABLE1 and VARIABLE2 are strings and two strings canot be added together

so all in all you have to set VARIABLE1 and VARIABLE2 as Integer 's
vb code example

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Dim VARIABLE1 As Integer
Dim VARIABLE2 As Integer
MsgBox(VARIABLE1 + VARIABLE2)

[PopPooB]

Code: Select all

set /a two=1+1

this will display 2 because the computer knows that 1 is a Integer so it can add them both together

but when you use this

Code: Select all

%VARIABLE1%+%VARIABLE2%

VARIABLE1 and VARIABLE2 are strings and two strings canot be added together

so all in all you have to set VARIABLE1 and VARIABLE2 as Integer 's
vb code example

Code: Select all

Dim VARIABLE1 As Integer
Dim VARIABLE2 As Integer
MsgBox(VARIABLE1 + VARIABLE2)

wow you're out of it man you need help

WERE CODING BATCH NOT VB IN BATCH STUFF WITH TWO %%s ON THE END IS CONSIDERED A VARIABLE

SOOOOO

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set vari1=1
set vari2=3
se /a vari3=%vari1%+%vari2%

THAT DOESNT WORK THOUGH SO IM ASKING IF THERES ANYWAY TOGET IT TO WORK OTHER THEN THE USED COMMANDS ABOVE IN BATCH!!!!!!!!!!!!!!

[bubzuru]

no it WONT work in batch and i put the vb code there so you can see that you have to set the variable as a Integer witch you canot do in batch so no Integer no + it cant be done

[bad_brain]

hm, works for me:




and it's what the MS page says too:
http://www.microsoft.com/resources/docu ... x?mfr=true