|<- <- -> ->|

Remote execution

Run uptime command on each node. 

    [jao@zack]$ osh @jao [ sh uptime ] $
    ('node1', '13:16:33 up 2 days,  5:39,  1 user,  load average: 0.00, 0.00, 0.01')
    ('node2', '13:16:33 up 2 days,  5:42,  1 user,  load average: 1.05, 0.88, 0.12')
    ('node3', '13:16:33 up 2 days,  5:43,  1 user,  load average: 0.64, 0.55, 0.59')

@jao [ ... ]: Run the bracketed command on each node of cluster jao.