Create an ed script, call it mycron:

Code:

1a * * * * * /path/to/myscript > /tmp/logfile 2&>1
.

/var/spool/cron/crontabs is the directory for Solaris crontabs. You will need an OS-specific variant of the script below.

This script assumes you are able to write the crontab, and that you have ssh keys installed. It also makes a lot of assumptions about your boxes - ie all of the solaris boxes have the same usernames, permissions, etc.

Code:

#!/bin/ksh
#ip.dat is a list of nodes of one flavor of OS
while read nname
do
sftp $nname <<EOF
   put mycron
   exit
EOF
ssh $nname '(cat mycron %&& echo "w" ) | ed - /var/spool/crontabs/someusername'

vi is based on ed. ed will not break your crontabs. Do not put too much faith in my example ed script, test it first.