In version 0.90.3 (at least), the first line of the elasticsearch start-up
And on line 92 the line is:
But, not all Unix-based systems point /bin/sh to /bin/bash or /bin/ksh.
And the $(command) syntax is not supported by the Bourne shell or by dash
(Ubuntu) to which /bin/sh is sometimes linked by default.
The correct fix would probably be to change line 92 to use the backtics
that all of the shells support:
I've opened the following bug to report this:
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