Trying to write an email processor extracting some data from email (dovecot/postfix based), so file located in
/home/moderator/Maildir/cur/1619183102.V97eI6001a560M865218.example.com:2,S
let's say
/home/moderator/Maildir/cur/file
Email file text contains text and HTML
Subject: New user
New user created
User name:Billy Jean
<html><head><title>New user</title>
</head>
<body>
<p>New user created</p>
User name:Billy Jean<br>
</body>
The task is to extract exactly user name Billy Jean between
User name:
and end of line
but leave only first instance to avoid duplicates (ignore HTML line User name:Billy Jean<br>)
Already tested some variants from StackOverFlow like
awk '/^User name:/{print $NF}' /home/moderator/Maildir/cur/file
but it does not give a necessary result and does not correspond the exact matter of my question.
Thx for any ideas to try,
With your shown samples, please try following awk code. Look for string which you want to search and exit on its first existence after printing needed value.
awk -F':' '/^User name:/{print $NF;exit}' /home/moderator/Maildir/cur/file
Bonus solution: In case your awk program has more things to handle and we can't get out of program without doing all stuff, then add a simple condition check with print so that it prints only very first occurrence of string.
awk -F':' '/^User name:/ && ++count==1{print $NF} {your rest of code here....}' /home/moderator/Maildir/cur/file