But sed -i ALSO changes the inode, and as I said it doesn't work:

root@hoptop:~# touch a
root@hoptop:~# ls -i a
9700011 a
root@hoptop:~# sed -i 's/q/a/g' a
root@hoptop:~# ls -i a
9700013 a

Benjamin Lefoul


________________________________________
From: owner-scientific-linux-us...@listserv.fnal.gov 
<owner-scientific-linux-us...@listserv.fnal.gov> on behalf of Tom H 
<tomh0...@gmail.com>
Sent: 30 March 2016 23:00
To: SL Users
Subject: Re: How does NetworkManager monitor the connection files?

On Wed, Mar 30, 2016 at 3:49 PM, Benjamin Lefoul
<benjamin.lef...@nwise.se> wrote:
>
> I have set monitor-connection-files=true in my
> /etc/NetworkManager/NetworkManager.conf
>
> It works fine (in fact, instantly) if I edit
> /etc/sysconfig/network-scripts/ifcfg-eth0 with emacs or vi (for instance,
> changing the IP).
>
> It fails miserably if I use sudoedit, or sed:
>
> # grep 100 /etc/sysconfig/network-scripts/ifcfg-eth0
> IPADDR=192.168.4.100
>
> # sed -i 's/100/155/g' /etc/sysconfig/network-scripts/ifcfg-eth0
>
> Even though all stats (access modify and change) are renewed.
>
> It's worse than that: even nmcli con reload afterwards fails.
>
> In fact, the only way to get the ip to change is by entering the file with
> vi, not touching it, and leave with ":wq" (not just ":q").
>
> Why is that? What is going on here?
>
> I know, I know, I can use nmcli in scripts, and not string-manipulation
> tools, but say I don't want to... :)
>
> And still, during operations, I'd rather edit the files with sudoedit...

"sudo -e ifcfg-file" doesn't change the inode. Can you use "sudo vi
ifcfg-file"? (Or whichever editor you prefer.)

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