I can't drag Unix Executables to the dock like I can with other executables. Is there another way to put them there?
You can use Platypus http://www.sveinbjorn.org/platypus to build a MacOSX compatable program which calls a bash script/executable.
Platypus will do the job fairly.
However, if you are not in the favour of installing any other software then you can also achieve the same using AppleScript:
Step 1: open Apple Script Editor from Spotlight search.
Step 2: write this command
to run do shell script "path_to_unix_executable" end run
Step 3: Save it as an application bundle.
Step 4: Run
Platypus is nice. An alternative is to create an Applescript application with a
do shell script command.
Here's the relevant apple technote: http://developer.apple.com/mac/library/technotes/tn2002/tn2065.html