多主機下同一命令

有一強者寫了個叫 dssh 的shell script


http://bashcurescancer.com/dssh-executing-an-arbitrary-command-in-parallel-on-an-arb
itrary-number-of-hosts.html


不過我認為下面這樣比較簡單
缺點是不能有其它參數，等我會寫之後再改進好了
------------------- 指令
list='virtue@::1 virtuemood@cislife.tfcis.org'
dssh(){ for i in $list;do echo $i\:;ssh $i $1;done;}
dssh uptime
------------------- 結果
virtue@::1:
 21:33:43 up 23:03,  0 users,  load average: 0.54, 0.42, 0.64
virtuemood@cislife.tfcis.org:
 9:36PM  up 8 days,  8:58, 0 users, load averages: 2.00, 2.02, 2.00

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