Running fdisk in a script

targettl · 11-03-2009, 04:44 PM

I have got a huge bash script and would like to add a fdisk command to it. The problem is that this command requires user input.
fdisk /dev/sda
Then you have to enter "w" and press [enter]

How can I make this process automatic so it won't ask for the w input.

nadroj · 11-03-2009, 04:57 PM

Can you try and pipe input to it? Something like

Code:

echo w | fdisk /dev/sda

unSpawn · 11-03-2009, 05:12 PM

Usually 'sfdisk' is promoted for scripting things, not 'fdisk'?..

targettl · 11-03-2009, 05:18 PM

Very quick response and is the answer I was looking for.
Thank you.

targettl · 11-03-2009, 05:19 PM

echo w | fdisk /dev/sda is that answer i was looking for thanks

nadroj · 11-03-2009, 05:21 PM

One thing to notice is that the output of fdisk (at the very end) is:

Code:

Command (m for help): Command (m for help): Command (m for help): Command (m for help): 
got EOF thrice - exiting..

So theres obviously something not quite right about the method I suggested above. I searched around and saw others with a similar problem. I dont know what "sfdisk", but if its the non-interactive version of fdisk (which is what you would really want), then I would try and play with that. Though if your not worried about these warnings, then it should be ok.