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Anyone know of an egrep command which will show the authors and subjects of all mails contained in some directory?

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Maybe something like:

egrep '^(From|Subject):' *

This will match From: or Subject: at the beginning of a line, which is approximately what you want.

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That looks good, but how will that show From and Subject? – user15770 Feb 21 '12 at 12:42
    
That's exactly what it does. Have you tried it? – larsks Feb 21 '12 at 12:46
    
Does the star at the end act as a kleene star? – user15770 Feb 21 '12 at 12:48
    
No. For the behavior of the star at the end, see the bash(1) man page. Note that the star is not part of the regular expression. – larsks Feb 21 '12 at 14:26

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