regex - the use of "+" in sed regular expression -

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  गूंज "lfj" | sed -e "s / ^ \ s + // g" lfj   
 मुझे याद है  +  इंगित करता है  एक या एक से अधिक , इसलिए    के सामने दो सफेद रिक्त स्थान हैं, ऐसा क्यों नहीं पट्टी कर सकते हैं <
 
 
 आपको  +  से बचने की आवश्यकता है।    प्री>  $ echo "lfj" | sed -e "s / ^ \ s \ + // g" lfj   
 बेसिक एसएआर (बेसिक रिज्यूलर एक्सप्रेशंस) का उपयोग करता है। बीआरई में पिछले एक या अधिक बार दोहराए जाने के लिए  +  बनाने के लिए, आपको इसे बचाना होगा।  
 विस्तारित रीगेक्सप विकल्प  -r  को सक्षम करें Sed को बीआर के बजाय ईआर का उपयोग करने के लिए sed।  
  $ गूंज "lfj" | sed -r "s / ^ \ s + // g" lfj   < / div>

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