How to pass a C program as a Command Line Argument [duplicate]

Question

Im not sure if it is possible, but would like to know if i can use the result of a main() function as the command line argument for another program. im currently using gcc compiler on linux so i figure it would look something like this:

./listcommandlinearugments ./generaterandomstring

but this does not work... in the above example the first program (listcommandlinearguments) simply lists ./generaterandomstring as a command line arugment instead of using the result of the main funtion (0) because it was int main() and returned 0.

Answer 1

You can use backticks to insert the output of a program into another command:

./generaterandomstring `./listcommandlinearugments`

EDIT:

Since you want the return value of the listcommandlinearugments, run that first, then use $? to get the return value:

./generaterandomstring
./listcommandlinearugments $?