Linux

proc manualChange {} {
global prompt spawn_id timeout
                         expect  {
				  -i $spawn_id -re $prompt {
					             send_user "Logged in to host: $name as $username\n"
					             send "passwd\r\n"
					             expect -i $spawn_id -re ".*asswor.*" {
                                                               set new [getInput "Password change for $username on $name: "]


								send "$new\r\n"
								expect -i $spawn_id -re "\[Rr\]e.*asswor.*" {
								          send "$new\r\n"
								          expect -i $spawn_id  -re "$prompt" {										                                                  send_user "Password changed successfully for $name\n"
										                             }
										      }
							     }
					        }
                         timeout {send_user "Timed out for spawn_id: $spawn_id\n"}
			 eof {send_user "Abnormal termination for spawn_id: $spawn_id"}
			 }
}

if {[llength $argv] < 2} {puts "Please provide:\n 1. username\n 2. list of hosts" ;  exit}
set username [lindex $argv 0]
set hostlist [lrange $argv 1 [llength $argv]]
##main()
         set prompt "[lindex $argv 0]@.*|.*[lindex $argv 0].*>|.*[lindex $argv 0].*#"
         foreach name $hostlist {
	                         if {![catch {eval spawn $loginprog $username@$name} err_spawn]} {
				      puts "Connecting to $name..."
				      expect  {
				          
					      -re $prompt {
					                     send_user "Logged in to host: $name as $username\n"
							     send "passwd\r\n"
							     expect -i $spawn_id -re ".*asswor.*" {
                                                                       set new [getInput "Password change for $username on $name: "]
								       send "$new\r\n"
								       expect -i $spawn_id -re "\[Rr\]e.*asswor.*" {
										            send "$new\r\n"
										            expect -i $spawn_id  -re "$prompt" {
										                                               send_user "Password changed successfully for $name\n"
										                             }
										      }
							     }
					        }		     			
					        -re $pwprompt {
						              send_user "Log in manually and then press ^p to change password\n"
						              interact {
							                 "^P" {manualChange}
							      }
					        }		      		   		                                   
						timeout {send_user "Timed out waiting on $name\n"}
						eof {send_user "Abnormal exit for connect() to host: $name\n"}
				       }													                             
				     } else {
				        puts "ERROR: Connecting to host: $name = $err_spawn"
				     }	  
	   }