surveillanceCamera.sh - script to save pics from web-cam priodically

surveillanceCamera.sh

#!/bin/bash
#
# http://iharder.sourceforge.net/current/macosx/imagesnap/
#

normal_interval_sec=30
cloud_interval=4

save="$HOME/usr/var/SurCam"
save_cloud="$HOME/Dropbox/SurCam"

mkdir -p "$save"
mkdir -p "$save_cloud"

cd "$save"
count=0
while sleep $normal_interval_sec
do  
    filename="$PWD/$(date +%FT%T).jpg"
    imagesnap "$filename"
    if (( count++ % cloud_interval == 0 ))
    then
        echo "Save to cloud: $filename"
        ( cd "$save_cloud" && ln -s "$filename" ./ )
    fi
done