So sprach »Ryan Cook« am 2001-08-25 um 06:54:17 -0700 :
> On Sat, Aug 25, 2001 at 11:30:50AM +0200, Alexander Skwar wrote:
> >             Uptime: 0 hours 54 minutes
> 
> What I'd like to know is how folks output their kernel version and
> system uptime in their .sig?

Dunno how "folks" do this :), but I do this like follows.  In my muttrc,
I've set:

set   signature="~/bin/signature.sh ~/.signature|"

~/bin/signature.sh looks like this:

#!/bin/sh

SIG=$1

echo -e "$(cat ${SIG})\\n\\t\\t$(linux_logo -g -a -F '#U'|sed 's| *\(Uptime\)|\1:|')"

linux_logo -g -a -F '#U' prints:

                           Uptime 5 hours 37 minutes

You can also use uptime with some "clever" regexp.

Now, for MUAs which do not support the signature to be the output of
some program, you can create a cron job which runs every minute and
writes a new .signature every time

For my header entry, I've got:

my_hdr X-Operating-System: An `uname -m` `uname -s` with Kernel v`uname -r`

Alexander Skwar
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                Uptime: 5 hours 36 minutes

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