sum=how?

[renzlo]

i have a text file with these contents:

Code: Select all

total:1
total:2
total:4
total:8

how do write it in batch that will sum up all the total in text file, as for the example above, the answer would be 15.

thanks in advance.

[nitt]

i have a text file with these contents:

Code: Select all

total:1
total:2
total:4
total:8

how do write it in batch that will sum up all the total in text file, as for the example above, the answer would be 15.

thanks in advance.

If the text file is named "total.txt":

Code: Select all

@echo off
setlocal enableDelayedExpansion
for /f %%a in (total.txt) do (
set text=%%a
set /a total+=!text:~6,10!
)
echo %total%
pause

[renzlo]

hi nitt, thanks. Its working. By the way can you give a code that uses "delims=:"?

[dbenham]

Code: Select all

set total=0
for /f "tokens=2 delims=:" %%n in (file.txt) do set /a total+=%%n

Dave Benham

[orange_batch]

I see a pattern fun with bits.

Code: Select all

for /l %%x in (1,1,32) do set /a "num=1<<%%x"&call echo:total:%%num%%

[Ed Dyreen]

Code: Select all

set /a "num=1<<1"
echo:total:%num%

Cool orange, but why

Ok, but documentation please

[orange_batch]

It's just a bitwise operation, look up any DOS reference. They are handy for a number of uses.

[renzlo]

thanks everyone for helping.

[Ed Dyreen]

That's why I couldn't find file 1
I completely forgot about those.