shell - script with simple flag -


मान लीजिए मेरे पास यह सरल स्क्रिप्ट है 

  #! / Bin / sh अगर [$ # -ए 2 2] तब "उपयोग: $ 0 arg1 arg2" से बाहर निकलें 1 फाई शीर्ष $ 1 $ 2 # # लेकिन यह माना जाता है: ## अगर -f फ्लैग सेट है, ## कॉल [पूंछ $ 1 $ 2] ## और यदि झंडा सेट नहीं है ## कॉल [हेड $ 1 $ 2]   
 तो मेरी स्क्रिप्ट में 'फ्लैग' की जांच करने का सबसे सरल तरीका क्या है?  
 धन्यवाद   
 
 
  एफएलएलएल = no " $ एआरजी "= -एफ एंड amp; "$ एफएलएलएजी" = हाँ टेस्ट "$ 1" "$ 2" और सिर "$ 1" "$ 2" फाई   
 यह आसान तरीका भी व्यवहार्य हो सकता है:

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