I am trying to call a shell function using fork() and exec() and I don't know how to get the output. Precisely, this is what my code does:
if (!fork()){
execv(factor, arg);
}
How could I get the output of "factor" ?
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[You'll need to open a pipe and then connect that to the child process's stdout.](http://stackoverflow.com/q/7292642) – Rufflewind Nov 26 '14 at 02:57
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Also consider [`popen()`](http://linux.die.net/man/3/popen) – Cornstalks Nov 26 '14 at 03:39