Take a photo using Cinema Display camera if present, built-in otherwise

take-photo.sh

#!/bin/bash

dir="$HOME/Documents/commit-photos"

if [[ ! -d $dir ]]; then
  mkdir -p $dir
fi

f=`echo \`date "+%Y%m%d-%H%M%S"\``
device=`imagesnap -l | grep -v "Video Devices:" | head -n 1`

imagesnap -d "$device" -q -w 1 $dir/$f.jpg