Input password to bash script, save, and enter when needed

Shell Programming and Scripting
1

I am looking for a way to start a script and have it prompt for a password that will be used later on in the script to SSH to another host and to SFTP. I don't want the password to be hard coded. Below is my script with the actual IP's and usernames removed.

#!/usr/bin/expect -f
#!/usr/bin/bash
spawn -noecho bash




expect "ompsat5"

send "echo 'STARTING OUTAGE REPORT SCRIPT'\r"

expect "ompsat5"

USER=username

read -s -p "Password for $USER: " PASS



#######################################
#LOG INTO OMP 4                       #
#######################################

send "ssh username@10.10.10.10\r"
expect "Password:"

send "password\r"

#######################################
#LOG INTO OMP 4 DONE                  #
#######################################


#######################################
#RUN ALARM SCRIPT                     #
#######################################

expect "ompaus4"
send "cd /home/username/outagereport/modules\r"
send "pwd\r"
send "./austinreport.py\r"
send "exit\r"

#######################################
#RUN ALARM SCRIPT DONE                #
#######################################

#######################################
#RUN COMMAND FOR SCHERTZ ALARMS       #
#######################################
expect "ompsat5"
send "\n"
expect "Connection to"
send "./5outage.py\r"


#########################################
#DONE RUNNING COMMAND FOR SCHERTZ ALARMS#
#########################################

######################################
#SFTP REPORT TO SW 5                 #
######################################

send "sftp username@10.10.10.10\r"
expect "Password:"

send "password\r"
expect "sftp"
send "cd /home/username/outagereport/modules\r"
send "get AustinOutageReport.txt\r"
send "exit\r"

######################################
#DONE SFTP REPORT TO SW 5            #
######################################

############################################
#CD, RM, COMBINE, FORMAT, DISPLAY REPORT   #
############################################

expect "ompsat5"
send "cd /home/username/outagereport/modules\r"
send "rm masterreport.txt\r"
send "cat AustinOutageReport.txt outagereport.txt>>masterreport.txt\r"
send "./reportsed\r"
send "clear\r"
send "rm finalreport.txt\r"
send "./finalsed\r"
send "cat finalreport.txt\r"

#################################################
#DONE CD, RM, COMBINE, FORMAT, DISPLAY REPORT   #
#################################################

interact
2

I suggest using ssh keys. This will make it fully automatic and not require having the expect brute-forcing tool publicly installed on your system.

1 Like
3

I was able to get this to work by using the following code:

set user [exec whoami]
send_user "$user"

send_user "Your Austin OMP Password: "
expect_user -re "(.*)\n"
set YourAustinOMPPassword $expect_out(1,string)

this runs the command of

whoami

and then stores it as a variable.

it then prompts for the password of the user for the omp

it expects a regular expression from the user

the RE is then set as a variable that can be called later in the script for SSH and SFTP

---------- Post updated at 11:42 PM ---------- Previous update was at 11:39 PM ----------

here is the full sanitized code

#!/usr/bin/expect -f
#!/usr/bin/bash
spawn -noecho bash




expect "ompsat5"

send "echo 'STARTING OUTAGE REPORT SCRIPT'\r"

expect "ompsat5"

set user [exec whoami]
send_user "$user"

send_user "Your Austin OMP Password: "
expect_user -re "(.*)\n"
set YourAustinOMPPassword $expect_out(1,string)



#######################################
#LOG INTO OMP 4                       #
#######################################

send "ssh $user@10.10.10.10\r"
expect "Password:"

send "$YourAustinOMPPassword\r"

#######################################
#LOG INTO OMP 4 DONE                  #
#######################################


#######################################
#RUN ALARM SCRIPT                     #
#######################################

expect "ompaus4"
send "cd /home/$user/outagereport/modules\r"
send "pwd\r"
send "./austinreport.py\r"
send "exit\r"

#######################################
#RUN ALARM SCRIPT DONE                #
#######################################

#######################################
#RUN COMMAND FOR SCHERTZ ALARMS       #
#######################################
expect "ompsat5"
send "\n"
expect "Connection to"
send "./5outage.py\r"


#########################################
#DONE RUNNING COMMAND FOR SCHERTZ ALARMS#
#########################################

######################################
#SFTP REPORT TO SW 5                 #
######################################

send "sftp $user@10.10.10.10\r"
expect "Password:"

send "password\r"
expect "sftp"
send "cd /home/$user/outagereport/modules\r"
send "get AustinOutageReport.txt\r"
send "exit\r"

######################################
#DONE SFTP REPORT TO SW 5            #
######################################

############################################
#CD, RM, COMBINE, FORMAT, DISPLAY REPORT   #
############################################

expect "ompsat5"
send "cd /home/$user/outagereport/modules\r"
send "rm masterreport.txt\r"
send "cat AustinOutageReport.txt outagereport.txt>>masterreport.txt\r"
send "./reportsed\r"
send "clear\r"
send "rm finalreport.txt\r"
send "./finalsed\r"
send "cat finalreport.txt\r"

#################################################
#DONE CD, RM, COMBINE, FORMAT, DISPLAY REPORT   #
#################################################

interact