I am writing a bash script to use rsync and update files on about 20 different servers.
I have the rsync part figured out. What I'm having trouble with is going through a list of variables.
My script thus far look like this:
#!/bin/bash SERVER1="192.xxx.xxx.2" SERVER2="192.xxx.xxx.3" SERVER3="192.xxx.xxx.4" SERVER4="192.xxx.xxx.5" SERVER5="192.xxx.xxx.6" SERVER6="192.xxx.xxx.7" for ((i=1; i<7; i++)) do echo [Server IP Address] done
[Server IP Address] should be the value of the associated variable. So when i = 1 I should echo the value of $SERVER1.
I've tried several iterations of this including
echo "$SERVER$i" # printed the value of i echo "SERVER$i" # printer "SERVER" plus the value of i ex: SERVER 1 where i = 1 echo $("SERVER$i") # produced an error SERVER1: command not found where i = 1 echo $$SERVER$i # printed a four digit number followed by "SERVER" plus the value of i echo \$$SERVER$i # printed "$" plus the value of i
It has been a long time since I scripted so I know I am missing something. Plus I'm sure I'm mixing in what I could do using C#, which I've used for the past 11 years.
Is what I'm trying to do even possible? Or should I be putting these values in an array and looping through the array? I need to this same thing for production IP addresses as well as location names.
This is all in an effort to not have to repeat a block of code I will be using to sync the files on the remote server.