Thread: Printing To Multiple Files

Hello, I am new to programming and Physics grad student(be easy on me ;-)).

I have a program which saves data to an outfile in the folder sigma0.lambda0

i.e. /home/user/Foo/sigma0.lambda0/

However, I want to change the parameters sigma and lambda which I obtained by reading in a parameter file.

Sigma and Lambda are ints, so they can be simply changed with a for loop.

However, after changing these parameters and running the program again, I want to save the file into another folder

/home/user/Foo/sigma1.lambda0/ etc....

I have tried manually going into the char OUTFILE[101] and looping with a pointer until I find the the character of interest in OUTFILE and changing this manually. But it is cumbersome and I feel like someone will have a better solution.

Edit: I already have the outfile directories made using a simple bash script.

Thanks.

You may be looking for sprintf.

Code:

char OUTFILE[101];
int i = 5, j = 7;
sprintf(OUTFILE, "/home/user/Foo/sigma%d.lambda%d", i, j);

Set i and j however you wish.