#!/bin/bash

# Example script.  Remember, anything after the first line that starts with "#" is a comment.

# Do this so you won't have to worry about missing path variables. Change to fit where it lives:
GPHOTO=/path/to/gphoto2

# First thing
$GPHOTO --shell param1,param2

# Optionally, wait five seconds
sleep 5

# and so on...
$GPHOTO --shell param1,param2