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bsd | 3 Sep 2009 12:26

Re: Bash rsync Script

Have you ever heard about rsnapshot ??
This could solve all your issue and provide you with a high  
performance backup solution.

Sorry for this cross-posting but It might help…

http://rsnapshot.org/

Le 23 juil. 2009 à 16:32, Kaushal Shriyan a écrit :

> Hi,
>
> I have three scripts, Can i combine it a single script?
>
> Thanks,
>
> Kaushal
>
>
> #!/bin/bash
> #rsync ha.d folder shell script
> #author kaushal
> #created on 23/07/2009
>
> TIMESTAMP=`date +%F-%T:%N`
>
> if /usr/bin/rsync -a /etc/ha.d 172.20.0.3:/etc/ >
> /tmp/rsync-ha.d-${TIMESTAMP}.log 2>&1
> then
>  /usr/bin/mailx -s "[CRON] Success: fw1 ha.d refresh daily to fw2"
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Kaushal Shriyan | 12 Sep 2009 09:08
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resolv.conf

Hi

I want to run it as a normal user. i get permission denied. is there a
work around for /etc/resolv.conf file
./resolv.sh: line 9: /etc/resolv.conf: Permission denied

#!/bin/bash
temp=$(tempfile)
cp /etc/resolv.conf $temp
echo "domain example.com" | sudo tee -a /etc/resolv.conf
echo "search example.com" | sudo tee -a /etc/resolv.conf
echo "nameserver 192.168.0.10" | sudo tee -a /etc/resolv.conf
echo "nameserver 192.168.0.12" | sudo tee -a /etc/resolv.conf
echo "nameserver 192.168.0.119" | sudo tee -a /etc/resolv.conf
printf "%s\n" "$temp" >> /etc/resolv.conf
rm -f $temp

Thanks and Regards,

Kaushal
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Hiisi | 12 Sep 2009 10:08
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Re: resolv.conf

2009/9/12 Kaushal Shriyan <kaushalshriyan@...>:
> Hi
>
> I want to run it as a normal user. i get permission denied. is there a
> work around for /etc/resolv.conf file
> ./resolv.sh: line 9: /etc/resolv.conf: Permission denied
>
> #!/bin/bash
> temp=$(tempfile)
> cp /etc/resolv.conf $temp
> echo "domain example.com" | sudo tee -a /etc/resolv.conf
> echo "search example.com" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.10" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.12" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.119" | sudo tee -a /etc/resolv.conf
> printf "%s\n" "$temp" >> /etc/resolv.conf
> rm -f $temp
>
> Thanks and Regards,
>
> Kaushal
> _______________________________________________
> Shell.Scripting mailing list
> Shell.Scripting@...
> http://www2.codegnome.org:59321/cgi-bin/mailman/listinfo/shell.scripting
>

On my Fedora11:
ls -l /etc/resolv.conf
-rw-r--r--. 2 root root 24  2.9. 00:58 /etc/resolv.conf
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David Lupo | 12 Sep 2009 19:53

Re: resolv.conf

On Sat, Sep 12, 2009 at 3:08 AM, Kaushal Shriyan
<kaushalshriyan@...> wrote:

> I want to run it as a normal user. i get permission denied. is there a
> work around for /etc/resolv.conf file
> ./resolv.sh: line 9: /etc/resolv.conf: Permission denied

The printf line is missing the pipe through "sudo tee -a" that makes
the rest of the lines work.  The >> operator isn't going to let a
regular user write on one of root's files.

I don't understand why you would want to write the name of the temp
file onto the end of the extended resolv.conf, but "sudo" should let
you do it.

>
> #!/bin/bash
> temp=$(tempfile)
> cp /etc/resolv.conf $temp
> echo "domain example.com" | sudo tee -a /etc/resolv.conf
> echo "search example.com" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.10" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.12" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.119" | sudo tee -a /etc/resolv.conf
> printf "%s\n" "$temp" >> /etc/resolv.conf
> rm -f $temp

--

-- 
David Lupo <david@...>
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Todd A. Jacobs | 13 Sep 2009 05:29
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Re: resolv.conf

On Sat, Sep 12, 2009 at 12:38:27PM +0530, Kaushal Shriyan wrote:

> #!/bin/bash
> temp=$(tempfile)
> cp /etc/resolv.conf $temp
> echo "domain example.com" | sudo tee -a /etc/resolv.conf
> echo "search example.com" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.10" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.12" | sudo tee -a /etc/resolv.conf
> echo "nameserver 192.168.0.119" | sudo tee -a /etc/resolv.conf
> printf "%s\n" "$temp" >> /etc/resolv.conf
> rm -f $temp

As has been pointed out, there are some security concerns with this.
However, you might find a here-document a cleaner solution:

    OLD_RESOLV=$(cat /etc/resolv.conf)
    cat <<- EOF | sudo tee /etc/resolv.conf
    domain example.com
    search example.com
    nameserver 192.168.0.10
    nameserver 192.168.0.12
    nameserver 192.168.0.119
    $OLD_RESOLV
    EOF

This avoids having temp files, which may create race conditions or other
security concerns, as well as being generally faster with fewer calls to
sudo and tee.
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Gmane