Antwort: RE: Printf issues with $output$ [Virus scanned]

[Schmitz, Carsten]

> echo does not easily support linebreaks and such.

Seems to depend on the platform. On Solaris it didn't work for me, but on RH 7.3 (and probably most GNU/Linux) this works:

------ snip --------
[cs at nemesis /]# /bin/echo -e "\ntest"

test
------ snip --------

Agreed, it does less than printf ... but enough for me to use it in some Nagios output commands, with linebreaks.

Cheers,
Carsten


-----Original Message-----
From: nagios-users-admin at lists.sourceforge.net [mailto:nagios-users-admin at lists.sourceforge.net]On Behalf Of Sascha Runschke
Sent: Friday, January 21, 2005 3:15 PM
To: nagios-users at lists.sourceforge.net
Subject: Antwort: RE: [Nagios-users] Printf issues with $output$ [Virus scanned]



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 

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Netzwerk Administration
IT-Services

ABIT AG
Robert-Bosch-Str. 1
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Tel.:+49 (0) 2150.9153.226
mailto:SRunschke at abit.de

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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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