58aeb87a8f
It's better to use ksh/bash built in methods, rather than spawn new processes every time. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com> Signed-off-by: George Melikov <mail@gmelikov.ru> Closes #8071