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echo new group
echo 0; { :; }
echo 1; { : ;}
echo 2; ({ :; })
echo 3; ({ : ;})
echo 4; ( : )
echo 5; ( :; )
echo 6; ( : ;)
# not sure if POSIX requires these, but bash accepts them ...
#echo 7; {( : )}
#echo 8; {( :; )}
#echo 9; {( : ;)}
echo new group
#echo 0; {(:);}
echo new group
echo 0; (:)
echo 1; (:;)
echo 2; (:);
echo 3; (:;);
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