[esb@esbapp1 sbin]$ ./ansible -i esbhosts esbapp2 -m command -a 'echo $HOSTNAME'
1.1.1102 | SUCCESS | rc=0 >>
$HOSTNAME
[esb@esbapp1 sbin]$ ./ansible -i esbhosts esbapp2 -m command -a "echo $HOSTNAME"
1.1.1102 | SUCCESS | rc=0 >>
esbapp1
[esb@esbapp1 sbin]$ ssh esbapp2 "echo $HOSTNAME"
esbapp1
[esb@esbapp1 sbin]$ ssh esbapp2 'echo $HOSTNAME'
esbapp2