how to add bash script and plist file to execute in OS X

hi,

i am trying to follow the post on http://www.practiceofcode.com/post/15543512691/disable-greylisting-under-lion-server

to add a bash script and plist file to execute it, however I don't know the specifics of what program to use to actually add the scripts to osx, as well as how to give root:wheel access to the plist file.

how does one go about creating a bash script on osx, and saving it to the disk.  then how, specifically, would i add the plist file and change its permissions?

thank you.
kaplancomputersAsked:
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maximus5328Commented:
You can use TextEdit - in your Applications - to create the script and plist. Just make sure you switch to plain text: Format menu > Make Plain Text.
To set the owner and change permissions you should use Terminal in your Utilities folder.

Easy steps to set the owner on a file:
1. Open Terminal and type (without quotes but with the space at the end):
"chown root:wheel "
2. Drag the file from the Finder to Terminal - the path to the file should be added at the end of the command.
3. Hit Return

To change permissions on a file:
1. Open Terminal and type (without quotes but with the space at the end):
"chmod 755 "
2. Drag the file from the Finder to Terminal - the path to the file should be added at the end of the command.
3. Hit Return

To check the effective owner and permissions on a file:
1. Open Terminal and type (without quotes but with the space at the end):
"ls -lah "
2. Drag the file from the Finder to Terminal - the path to the file should be added at the end of the command.
3. Hit Return
The resulting line will show permissions first then owner, group, file size, modification date, file path.
Permissions 755 should look like "-rwxr-xr-x"
Permissions 644 should look like "-rw-r--r--"
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kaplancomputersAuthor Commented:
Perfect, thanks for the explanation!
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