From supersasho, 7 Months ago, written in Bash.
#!/bin/bash
linux_list_dir=$HOME/servers/
linux_list=co_others
for server in $( < $linux_list_dir$linux_list )
do ssh -q -o StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=10 $server '
if [ ! -d "/var/spool/cron/tabs" ]
then
echo -e $(hostname)" "$(sudo ls -1 /var/spool/cron/ | sed 's/root//' )
else
echo -e $(hostname)" "$(sudo ls -1 /var/spool/cron/tabs/ | sed 's/root//' )
fi ' | tee -a $HOME/crontabs/$linux_list.cron.list
done
Replies to cron on suse and rhel 
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