Thread: is there difference between two variations of sh command substitution?
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Old 23rd September 2010
BSDfan666 BSDfan666 is offline
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I also prefer using $() wherever possible, apparently it was introduced with Korn shells and GNU's bash.

As mentioned by Carpetsmoker, this has been merged into POSIX/SUS standards and both are perfectly legal.. and a compliant 'sh' must support both.

http://www.opengroup.org/onlinepubs/...l#tag_18_06_03
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