[el@rosewill bin ]$ remmina -?
Usage:
  remmina [OPTION...] - The GTK+ Remote Desktop Client

Help Options:
  -h, --help           Show help options

Application Options:
  -a, --about          Show about dialog
  -c, --connect=F      Connect to a .remmina file F
  -e, --edit=F         Edit a .remmina file F
  -n, --new            Create a new connection profile
  -p, --pref           Show preference dialog
  -x, --plugin=P       Execute plugin P
  -q, --quit           Quit the application
  -s, --server=S       Use default server name S
  -t, --protocol=T     Use default protocol T
  -i, --icon           Start as tray icon

remmina -c /home/el/.remmina/1375746771949.remmina

[remmina]
disableclipboard=0
ssh_auth=0
clientname=
quality=0
ssh_charset=
ssh_privatekey=
console=0
resolution=1800x900
group=
password=supersecretpassword==
name=HostNameZeusCannon
ssh_loopback=0
shareprinter=0
ssh_username=
ssh_server=
security=
protocol=RDP
execpath=
sound=off
exec=
ssh_enabled=0
username=myusername@gmail.com
sharefolder=
domain=
server=192.168.13.106
colordepth=32
window_maximize=0
window_height=967
viewmode=1
window_width=1812
~

remmina -c /home/el/.remmina/1375746771949.remmina

./.local/share/remmina/1540111887455.remmina