Run shell script as root on boot

Hi,

first of all you can store your shell script anywhere on your system, I prefere the location /usr/local/scripts (this doesn't exist by default).

Second you have to create a LaunchDeamon script in /Library/LaunchDeamons which execute your shell script at boot as root.

An example:

-------------------------snip------------------------
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST
1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>YOUR IDENTIFIERNAME</string>
<key>ProgramArguments</key>
<array>
<string>/usr/local/scripts/YOUR_SCRIPT.sh</string>
</array>
<key>RunAtLoad</key>
<true/>
<key>UserName</key>
<string>ROOT</string>
<key>GroupName</key>
<string>WHEEL</string>
</dict>
</plist>
-------------------------snap------------------------

http://developer.apple.com/mac/library/documentation/MacOSX/Conceptual/BPSystemS tartup/Articles/LaunchOnDemandDaemons.html

To run a script as root during a user login you can configure a LoginHook. To create a LoginHook login as the relating user and type the following commad:

sudo defaults write com.apple.loginwindow LoginHook /Path/To/Your/Script

http://support.apple.com/kb/HT2420

Hope that helps

Bye Tom

Look at launchd. If you do a Google search, there are lots of tutorials around on the Internet. And be sure to check out the man page ( man launchd.plist), as it has a good listing of the various keys and parameters you can use in your plist.

If you can't get one of tutorials to work for you, post back and I'll try to help.

charlie

You can run your script at login as root, using sudo -- but first you have to edit the file /etc/sudoers such that sudo will not ask for a password to run that script as root.

To edit that file, use the command (in Terminal) "sudo visudo"
Add a line (assuming your username is ross, and the script is /usr/local/bin/myscript):

ross ALL = NOPASSWD: /usr/local/bin/myscript

The last step is to make a script that simply calls:

sudo /usr/local/bin/myscript

And setup that script as a login item.