Antwort: RE: Printf issues with $output$ [Virus scanned]
Dan Stromberg
strombrg at dcs.nac.uci.edu
Fri Jan 21 18:35:57 CET 2005
Actually, you can get pretty good linebreak support out of echo, by
combining it with tr.
EG, a line without a newline might look like:
echo "Foo bar " | tr -d '\012'
This is very portable.
On Fri, 2005-01-21 at 15:14 +0100, Sascha Runschke wrote:
>
> The use of printf is necessary so you can nicely format the output as
> mail.
> echo does not easily support linebreaks and such. You could force
> them
> of course by using quoting ^M into the output, but that might pose
> other
> unforeseen problems.
>
> sash
>
> --------------------------------------------------
> Sascha Runschke
> Netzwerk Administration
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>
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> "Schmitz, Carsten"
> <Carsten.Schmitz at aegon.com>
> Gesendet von: nagios-
> users-
> admin at lists.sourceforge.net
>
> 20.01.2005 17:04
>
>
>
>
> An: "Ian
> Davidson"
> <idavidso at juniper.net>,
> <nagios-
> users at lists.sourceforge.net>
> Kopie:
> Thema:
> RE: [Nagios-users]
> Printf issues with
> $output$ [Virus
> scanned]
>
>
>
>
> > it is processing the backslash as an exit request. Any ideas how to
> get
> > around this??
>
> As someone who has never really used printf (at least not outside C),
> any reason you can't use echo? Seems to work:
>
> /usr/local/nagios/libexec# printf "tes\t"
> tes
>
> /usr/local/nagios/libexec# echo "tes\t"
> tes\t
>
> Should work similar to this:
>
> FILE=`mktemp /tmp/nagios_XXXXXX` && echo "my_text_with_backshashes" >
> $FILE && cat $FILE | mail -s "mytext" recipient at example.com ; rm $FILE
>
> (and there's probably a way to do this without temp files and my
> "useless use of cat", too ;)
>
> Cheers,
>
> Carsten
>
>
>
> -----Original Message-----
> From: nagios-users-admin at lists.sourceforge.net
> [mailto:nagios-users-admin at lists.sourceforge.net]On Behalf Of Ian
> Davidson
> Sent: Thursday, January 20, 2005 1:57 PM
> To: nagios-users at lists.sourceforge.net
> Subject: [Nagios-users] Printf issues with $output$
>
>
> I've seen a few questions on this subject but have yet to find the
> solution, so apologies if I'm going over old ground here.
>
> I'm monitoring some Windows server disks and the resulting output is
> along the lines of:
>
> 'c:\ - total: 16.92 Gb - used: 11.92 Gb (70%) - free 5.00 Gb (30%)',
> but
> printf is cutting off everything after the 'c:' in the email alerts as
> it is processing the backslash as an exit request. Any ideas how to
> get
> around this??
>
> Cheers,
>
> Ian
> ---
> Ian Davidson
> Corporate Network Services
> Email: idavidso at juniper.net
> GSM: +44-7952-173703
> Tel: +44-1372-385653
>
>
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