Save output from (void) system into a variable (C) -


यहां मेरा कोड है: 

  # include & lt; stdlib.h & gt; # से & lt में शामिल हैं, stdio.h & gt; Int main () {(शून्य) प्रणाली ("बिल्ली json.json | ./jq.exe '। स्थान | {सड़क, शहर}' '); वापसी 0; }   
 मैं आउटपुट (शून्य) सिस्टम से एक वेरिएबल में सहेजना चाहता हूं, लेकिन मैं यह कैसे करूँगा?   
 
 
 आपको एक पाइप बनाने के लिए आउटपुट को सिस्टम कॉल से रीडायरेक्ट करना होगा, और फिर पढ़ें पाइप से डेटा - यह वही है जो अनिवार्य रूप से कॉल करता है, जिसका अर्थ है कि आपको केवल  सिस्टम  कॉल को  popen  कॉल में बदलना चाहिए और फिर फाइल डिस्क्रिप्टर से पढ़ें वे चर में जिसे आप पॉप्युलेट करना चाहते हैं।  
 आप यहां एक जैसे स्टैक ओवरफ्लो पर पॉपन का इस्तेमाल कैसे करते हैं, इसके उदाहरण पा सकते हैं;

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