SSH to multiple hosts at once -

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i have script loops through list of hosts, connecting each of them ssh using rsa key, , saving output file on local machine - works correctly. however, commands run on each server take while (~30 minutes) , there 10 servers. run commands in parallel save time, can't seem working. here code (working):

for host in $hosts;     echo "connecting $host"..     ssh -n -t -t $user@$host "/data/reports/formatted_report.sh" done

how can speed up?

you should add & end of ssh call, run on background.

for host in $hosts;     echo "connecting $host"..     ssh -n -t -t $user@$host "/data/reports/formatted_report.sh" & done

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