I tried a few experiments to get around this, but all have failed. One of which was to use the "open myapp.app" shell command which doesn't re-open the application at all (no error or anything).

Man pages are your friend:

NAME
     open -- open files and directories
SYNOPSIS
     open [-a application] file ...
     open [-b bundle_identifier] file ...
     open [-e] file ...
     open [-t] file ...
     open [-f]

[download]

You want the -a flag

In reply to Re: Mac OSX Opening .app & UNIX EXEC by jhourcle
in thread Mac OSX Opening .app & UNIX EXEC by nevafuse

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