expect 分发ssh key脚本

 #!/usr/bin/expect
 if {$argc != } {
   send_user "USAGE:expect_sshkey.exp host"
   exit
 }
 
 #define var
 set host [lindex $argv ]
 set password ""
 
 #spawn
 spawn ssh-copy-id -i /home/jp/.ssh/id_dsa.pub -p  jp@$host
 
 #expect
 expect {
   "yes/no" {send "yes\r";exp_continue}
   "*password" {send "$password\r";}
 }
 
 expect eof
 
 exit -onexit {
   send_user "Good to you!\n"
 }

生成ssh key

 #!/usr/bin/expect
 #spawn
 spawn ssh-keygen -t dsa
 expect {
   "*key" {send "\r";exp_continue}
   "*passphrase" {send "\r";exp_continue}
   "*again" {send "\r"}
 }
 
 expect eof
 exit -onexit {
   send_user "Done!\n"}