how to delete a line in a text file in ruby on rails -


इस सवाल का पहले से ही एक उत्तर है: < / P>

  • 1 उत्तर

    मेरी फ़ाइल text.txt है सामग्री के साथ 

      संसाधन: ऐल्बम, को छोड़कर: [: नया,: संपादित करें, नष्ट करो] संसाधन: conversation_replies, को छोड़कर: [: नया: संपादित करें, नष्ट करें] संसाधन: लेखकों, को छोड़कर: [: नया,: संपादित करें, नष्ट करो] .........   
     अब, मैं इस फ़ाइल में एक पंक्ति को हटाना चाहता हूं। उदाहरण के लिए, मैं चाहता हूं कि वर्ण के साथ सामग्री के साथ लाइन हटाएं जैसे: conversation_replies  
     कृपया मेरी मदद करें बहुत बहुत धन्यवाद   
     
     
      सिस्टम ("बिल्ली youfile | grep -v conversation_replies & gt; yourfile बाक) सिस्टम ("mv youfile.bak yourfile")

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