Moving remote folder named by local variable

Question

I'm trying to move a remote directory whose name contains a value which is a single digit number stored in a local variable.

ssh root@1.1.1.1 'mv /etc/folder_* /etc/folder_$value'

However $value isn't parsed, i've tried putting quotes and double quotes?

Answer 1

The solution is to use double quotes instead of single quotes. So that the shell command can interpolate your locally defined variable "value". So use instead:

ssh root@1.1.1.1 "mv /etc/folder_* /etc/folder_$value"

Example output for when I tested this: (variable NROFLINES is defined locally, equal to 4)

cristi@ubuntu:~$ ssh archtln@192.168.174.165 'ls | head -$NROFLINES'
archtln@192.168.174.165's password: 
Desktop
Documents
Downloads
examples.desktop
Music
Pictures
Public
Templates
tmp

cristi@ubuntu:~$ ssh archtln@192.168.174.165 "ls | head -$NROFLINES"
archtln@192.168.174.165's password: 
Desktop
Documents
Downloads
examples.desktop