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w00t
Asked: 2018-01-03 07:42:12 +0800 CST

List only queue id in mailq

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mailq lists a bunch of information relating to the queue: 

C999C20A80    8314 Sun Dec 24 21:19:18  MAILER-DAEMON  
(host abc[x.x.x.x] said: 421 Timeout - closing connection (in reply to MAIL FROM command))  
                                         a@a

How do you print only the QUEUE ID without processing it with various grep|awk|sed?
I'm certain I saw a command for it but I didn't "register" it and now I forgot it.
Maybe something with postsuper or postqueue, but reading the man pages I cannot see any options for this.

postfix

1 Answers

  1. Best Answer

    I don't know about the 'right way to do it'

    but for me works

    mailq | awk '$7 ~/@/ { print $1 }'

    this will display only the id's

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