I am writing a simple shell script which changes the mac address of the network hardware. One of the line is :
sudo ifconfig eth0 hw ether 00:99:99:00:00:00
My problem is with sudo the script prompts for password. Is there any way that I could do this without prompting the user for password ???
A safer way to do it would be:
then add
to the editor window that appeared. Once you are done, use
:x
to quitHere is a Zenity dialog that does something similar to Tman's comment,
though the password isn't stored in history... This may be a good alternative
Most definitely, if you don't mind making that particular command 'free for use' for that particular user:
See basically my other answer here: Shell script - Sudo-permissions lost over time
The simplest thing that may work is
Also, you could sudo an arbitrary command on the same terminal (tty/vty), and
sudo
will cache the authentication for a while (or untilsudo -k
), so you may start the script and it will 'remember' the credentials from your earliersudo
invocation. I sometimes do this when composing pipes withsudo
(just preceded them withsudo true
)You need a
sudo
configuration line which allows for the command to be executed by the user without password prompt.You can disable the password prompt for a whole user (more dangerous, but perhaps ok if you are the only user on your desktop -- DONT do this on a server ):
or more restrictive, only allowing the ifconfig command:
See:
man sudoers
,man sudo
http://ubuntuforums.org/showthread.php?t=1132821
http://www.linuxhelp.net/guides/sudo/