Say you want to run a command on a group of machines using SSH. Rather than manually running the command on each remote machine you can automate their execution

Say you want to run a command on a group of machines using SSH. Rather than manually running the command on each remote machine you can automate their execution over the group using what is known as distributed commands. http://www.tecmint.com/using-dsh-distributed-shell-to-run-linux-commands-across-multiple-machines/ http://www.tecmint.com/using-dsh-distributed-shell-to-run-li... http://www.ibm.com/developerworks/aix/library/au-satdistadmin/#N100E1 http://www.ibm.com/developerworks/aix/library/au-satdistadmi...