Shell Programming and Scripting

#!/usr/local/bin/expect -f
# ----------------------------------------------------------------------
# For example:
#  ./sshlogin hostname username password who
#  ./sshlogin hostname username password uname -a
# ----------------------------------------------------------------------
# set Variables
set hostname [lrange $argv 0 0]
set username [lrange $argv 1 1]
set password [lrange $argv 2 2]
set scriptname [lrange $argv 3 3]
set arg1 [lrange $argv 4 4]
set timeout 20
# now connect to remote UNIX box (ipaddr) with given script to execute
spawn ssh -q -o NumberOfPasswordPrompts=1 -o StrictHostKeyChecking=no $username@$hostname $scriptname $arg1
match_max 100000
# Look for passwod prompt
expect "*?assword:*"
# Send password aka $password
send -- "$password\r"
# send blank line (\r) to make sure we get back to gui
send -- "\r"
expect eof
catch wait reason
set exit_status [lindex $reason 3]
send_user "EXIT CODE: $exit_status\r"
exit $exit_status

bash-3.2# /var/tmp/ssh-test.sh nproc-db34-admin broe ZAQ!2wsx uname -a
/var/tmp/ssh-test.sh nproc-db34-admin broe ZAQuptimewsx uname -a
spawn ssh -q -o NumberOfPasswordPrompts=1 -o StrictHostKeyChecking=no broe@nproc-db34-admin uname -a
Password:
bash-3.2#  255

bash-3.2# !2
uptime
  3:02pm  up 1 day(s),  1:42,  1 user,  load average: 0.01, 0.02, 0.02
bash-3.2#