r - how to send different commands to multiple hosts to run programs in Linux -


i r user. run programs on multiple computers of campus. example, need run 10 different programs. need open putty 10 times log 10 different computers. , submit each of programs each of 10 computers (their os linux). there way log in 10 different computers , send them command @ same time? use following command submit program

nohup rscript l_1_cc.r > l_1_sh.txt   nohup rscript l_2_cc.r > l_2_sh.txt  nohup rscript l_3_cc.r > l_3_sh.txt

first set ssh can login without entering password (google if don't know how). write script ssh each remote host run command. below example.

#!/bin/bash  host_list="host1 host2 host3 host4 host5 host6 host7 host8 host9 host10"  h in $host_list     case $h in         host1)             ssh $h nohup rscript l_1_cc.r > l_1_sh.txt             ;;         host2)             ssh $h nohup rscript l_2_cc.r > l_2_sh.txt             ;;         esac done

this simplistic example. can better (for example, can put ".r" , ".txt" file names variable , use rather explicitly listing every option in case).


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