On Mac OSX how do I add a line to a file using sed when the file is empty? -


यह ठीक काम करता है 

  $ sed -i '' '1i \ my text' $ होम / .bashrc

जब एक पंक्ति एक होती है, लेकिन जब कोई रेखा नहीं होती है तब कोई प्रभाव नहीं होता है।

एक ही रास्ता, दोनों ही मामलों में काम करेगा: 

  {मेरे टेक्स्ट को गूंज; बिल्ली फ़ाइल; } | टी फाइल

बड़ी फ़ाइलों के लिए यह काम बड़ी फ़ाइलों के लिए, एक अस्थायी फ़ाइल का उपयोग करें: 

  {मेरे टेक्स्ट को गूंज; बिल्ली फ़ाइल; } & Gt; अस्थायी $$ & amp; amp; एमवी अस्थायी $ $ फ़ाइल

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