[2016-05-10 16:34] markus schnalke <mei...@marmaro.de>
>
> Yet, I have a simpler solution (sorry for being so late with it!):
>
> #!/bin/sh
> #
> # remove From_ lines from MH messages in-place
>
> for i do
> ed - "$i" <<\!
> 1,/^$/g/^From /d
> w
> !
> done
This code isn't good enough. It cannot handle header-only messages,
nor does it check for read-only files. This is a better version:
for i do
if [ ! -w "$i" ] ; then
echo "$i: not writeable"
continue
fi
if grep -q '^$' "$i" ; then
range='1,/^$/'
else
range='1,$'
fi
ed - "$i" <<! || echo "$i: editing failed"
$range g/^From /d
w
!
done
I used this version to convert my whole mail storage (5.8 GB).
It took about 9 minutes.
There was one message with wrong permissions (had to fix that
manually) and about 40 messages without a trailing newline
(they are correct according to RFC 822, IIRC, but not according
to Unix style; ed(1) informs that it appended a newline
automatically).
meillo
