ssh batch jobs: query hundreds of hosts with an ssh command

ssh -tq -o "BatchMode yes" $HOST <some_command> >> to_a_file
Need to query hundreds of hosts with an ssh command ? Of course you'll have setup keys on all your remote HOSTs. But in the case a key is not present this command will skip that node, proceeding on to the next. -t: Force pseudo-tty allocation. This can be used to execute arbitrary screen-based programs on a remote machine. Also prevents unwanted stty messages being sent to console -q: Quiet mode. -o "BatchMode yes" If set to yes, passphrase/password querying will be disabled. This option is useful in scripts and other batch jobs where no user is present
Sample Output
# wrap command with a loop, cycling through your HOST names

ssh -tq -o "BatchMode yes" $HOST  <some_command> >> to_a_file

1
By: jp
2011-03-02 20:33:59
ssh

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Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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