linux - How to take /etc/services entry inside a shell script? -

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मेरे पास / etc / services फाइल में एक प्रविष्टि है।

abcde 25354 / tcp < / कोड>

मुझे अपने शेल स्क्रिप्ट के अंदर प्रविष्टि के <पोर्ट> एबीसीडी के पोर्ट नंबर को लेने की जरूरत है ऐसा कैसे करें? 

  awk '/ ^ imap / {विभाजन ($ 2, ए, "/"); प्रिंट [1]; } '/ etc / services   
 आपको एएमसीडीई के साथ आईएमएड को बदलने की आवश्यकता होगी, या जो भी आप वास्तव में देख रहे हैं। आपको  ^ imap। * Tcp   
 जैसे पैटर्न का विस्तार करने की आवश्यकता भी हो सकती है  
  getent services imap  < / प्री> 
 कौन सा उत्पादन करता है:  
  imap 143 / tcp imap2

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