How Can I Seamlessly Capture stdout from a `system()` Command in C/C ?

Capturing stdout from a system() command seamlessly

Capturing the stdout output of an external application launched using the system() command is essential for many applications. In C/C , there are a few approaches to accomplish this task:

One optimal method involves leveraging the popen() and pclose() functions:

#include <stdio.h>

int main() {
    FILE *fp;

    fp = popen("ls", "r");
    // Capture output and process accordingly
    pclose(fp);

    return 0;
}

With popen(), you can open a pipe to the standard output of the command you specify. The pclose() function closes the pipe and waits for the command to complete, returning the exit status.

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