[root@osg-ce ~]# for ((i=1; i<85; i++)) ; do ssh 192.168.1.$i "sed -i 's/spg00/osgce/g' /etc/aliases"; doneo que deixara a seguinte linha no arquivo
root: root@osgce.gridAgora
[root@osg-ce ~]# clcmd newaliases [root@osg-ce ~]# chkconfig --add sendmail [root@osg-ce ~]# chkconfig sendmail on