Run local bash script on multiple remote machine

Question

I have below bash script,every time i want to create a user i need to copy this script to server and run it.

Is there any thing we can do so that this script fetches the IP's from a hosts.txt file(running script on multiple server's)one by one and create user on server.Also,we need to be root to run this script.

1.ask for password once and use it in script for rest of the script where ever necessary. 2.login as normal user. 3.become a root user and run the script

#!/bin/bash #Script to Add User read -p 'Please Enter The Username To Add: ' name echo "$name" > /tmp/userlist.txt clear echo -e "Hallo $name\nYour Name Is Added To The List." userfile=/tmp/userlist.txt username=$(cat /tmp/userlist.txt | tr 'A-Z' 'a-z') for user in $username do useradd $user -N -s /bin/bash usermod -aG sudo $user passwd $user done echo "==================================" echo "User $name Have Been Created." echo "==================================" tail /etc/passwd | cut -d: -f1 

Answer 1

If you want to copy the script and run it from a centralized point create a general provisioning script in charge of copying and executing

1. Create an array list, in this case I used a file called hostList.active

2. Set the only argument to be the script you're trying to copy & execute on the remote server. (In this case it will run in the remote machines home directory)

   #! /bin/bash while read box; do ping -c 1 -w 1 -q $box > /dev/null if (test $? = 0); then echo "***************************************************************" echo $box scp $1 $box:~/. ssh -n -o stricthostkeychecking=no -X $box "~/$1" else echo $box is not responding to ping echo $box >> hostList.notdone fi done < hostList.active 

I placed 2 test servers in my array list file (hostList.active) and it connected to both, copied the script and executed it.

 ./copyandrun.sh bogus.sh *************************************************************** tsweb bogus.sh 100% 36 0.0KB/s 00:00 Running a Test *************************************************************** tsdb bogus.sh 100% 36 0.0KB/s 00:00 Running a Test 

Ensure the script your copying has proper permissions to be able to be executed by whatever user your copying it over as.