OS X Screenshot Script

me.screenshot.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
 <key>Label</key>
 <string>me.screenshot</string>
 <key>ProgramArguments</key>
 <array>
 <string>/Users/john/scripts/screenshot.sh</string>
 </array>
 <key>StartInterval</key>
 <integer>60</integer>
 <key>RunAtLoad</key>
 <true/>
</dict>
</plist>

screenshot.sh

#! /bin/bash

idleTime=60
format=jpg
destination=$HOME/Desktop/Screenshots/

if [ $((`ioreg -c IOHIDSystem | sed -e '/HIDIdleTime/ !{ d' -e 't' -e '}' -e 's/.* = //g' -e 'q'` / 1000000000)) -lt $idleTime ]; then
	echo "taking screenshot"
	foldername=""`eval date +%Y-%m-%d`""
	mkdir -p "$destination$foldername"
	filename1="$destination/$foldername/image_01_"`eval date +%Y-%m-%d-%H-%M-%S`".$format"
#	filename2="$destination/$foldername/image_02_"`eval date +%Y-%m-%d-%H-%M-%S`".$format"
	screencapture -x -r -m -o -t $format "$filename1"
else
	echo "idle - no screenshot"
fi

• Add the plist file to /Library/LaunchAgents/
• Put the sh file in ~/scripts
• Then run launchctl load -w /Library/LaunchAgents/me.screenshot.plist