n=0; for i in `cat ttt` ; do readarray arr$n < <(ssh $i 'cat /etc/passwd'); n=$(( $n + 1 )) ; done
printf '%s\n' "${#arr0[@]}"
20
printf '%s\n' "${#arr1[@]}"
26
save remote files to array
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n=0; for i in `cat ttt` ; do readarray arr$n < <(ssh $i 'cat /etc/passwd'); n=$(( $n + 1 )) ; done
printf '%s\n' "${#arr0[@]}"
20
printf '%s\n' "${#arr1[@]}"
26