Formail: what is the +skip option for and why?
David W. Tamkin
dattier at panix.com
Sat Sep 30 06:39:58 CEST 2006
> I an redoing some older scripts, and I don't understand why I have a +1
> in the formail statement. With or without, the answer is the same - so
> what is it used for?
> [sda at beaujolais ~]$ formail -X'From ' -cs < $HOME/mail/junk | wc -l
> [sda at beaujolais ~]$ formail +1 -X'From ' -cs < $HOME/mail/junk | wc -l
Seee the formail(1) man page. With -s, +# means to skip the first #
split-out messages and omit them from the output.
Since both results were 126, I see two possibilities:
1. What formail sees as the first split-out message in the file is
something that doesn't have a From_ postmark (though wouldn't the
absence of -f add one?), or
2. a 127th message was added to the file between the two attempts.
formail -1s < $HOME/mail/junk
and see what comes out.
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