ssh remote run - problems

Question

This will print 4 lines:

ssh root@remote_ip "service iptables restart"

Output:

iptables: Flushing firewall rules: [  OK  ]
iptables: Setting chains to policy ACCEPT: filter [  OK  ]
iptables: Unloading modules: [  OK  ]
iptables: Applying firewall rules: [  OK  ]

Same command inside of VAR=$()

VAR=$(ssh root@remote_ip "service iptables restart")
echo $VAR

This time it prints only this line:

iptables: Applying firewall rules: [ OK ]: filter [ OK ]

That line is not even a line from the standard 4 line output.

makes no sense to me.

Also.. I want to see the 4 line output like the original.

Answer 1

If the output from the command contains carriage-returns (CRLF or \r\n, as DOS does it), this will be the effect:

$ text=$( printf 'A\r\nB\r\nC\r\n' )
$ echo $text
 C

However, if you properly quote your variable when you echo it:

$ echo "$text"
A
B
C