launchd files that run a shell script on a certain schedule.

com.getnpr.atc.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>local.com.getnpr.atc</string>
	<key>EnvironmentVariables</key>
	<dict>
		<key>PATH</key>
		<string>/Users/bierman/Documents/Applications/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin</string>
	</dict>
	<key>ProgramArguments</key>
	<array>
		<string>/Users/bierman/Documents/Applications/bin/getnpr.sh</string>
		<string>atc</string>
		<string>f</string>
	</array>
	<key>StandardErrorPath</key>
	<string>/tmp/local.com.getnpr.atc.err</string>
	<key>StandardOutPath</key>
	<string>/tmp/local.com.getnpr.atc.out</string>

	<key>StartCalendarInterval</key>
 	<!-- Monday is "1" Sunday can be "0" or "7" -->
	<array>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>1</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>2</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>3</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>4</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>5</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>16</integer>
			<key>Minute</key>
			<integer>25</integer>
			<key>Weekday</key>
			<integer>6</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>17</integer>
			<key>Minute</key>
			<integer>15</integer>
			<key>Weekday</key>
			<integer>7</integer>
			</dict>
	</array>
</dict>
</plist>

com.getnpr.morningedition.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>local.com.getnpr.morningedition</string>
	<key>EnvironmentVariables</key>
	<dict>
		<key>PATH</key>
		<string>/Users/bierman/Documents/Applications/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin</string>
	</dict>
	<key>ProgramArguments</key>
	<array>
		<string>/Users/bierman/Documents/Applications/bin/getnpr.sh</string>
		<string>me</string>
		<string>f</string>
	</array>
	<key>StandardErrorPath</key>
	<string>/tmp/local.com.getnpr.morningedition.err</string>
	<key>StandardOutPath</key>
	<string>/tmp/local.com.getnpr.morningedition.out</string>

	<key>StartCalendarInterval</key>
		<!-- Monday is "1" Sunday can be "0" or "7" -->
	<array>
		<dict>
			<key>Hour</key>
			<integer>6</integer>
			<key>Minute</key>
			<integer>10</integer>
			<key>Weekday</key>
			<integer>1</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>6</integer>
			<key>Minute</key>
			<integer>10</integer>
			<key>Weekday</key>
			<integer>2</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>6</integer>
			<key>Minute</key>
			<integer>10</integer>
			<key>Weekday</key>
			<integer>3</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>6</integer>
			<key>Minute</key>
			<integer>10</integer>
			<key>Weekday</key>
			<integer>4</integer>
		</dict>
		<dict>
			<key>Hour</key>
			<integer>6</integer>
			<key>Minute</key>
			<integer>10</integer>
			<key>Weekday</key>
			<integer>5</integer>
		</dict>
	</array>
</dict>
</plist>

com.getnpr.wesat.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>local.com.getnpr.wesat</string>
	<key>EnvironmentVariables</key>
	<dict>
		<key>PATH</key>
		<string>/Users/bierman/Documents/Applications/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin</string>
	</dict>
	<key>ProgramArguments</key>
	<array>
		<string>/Users/bierman/Documents/Applications/bin/getnpr.sh</string>
		<string>wesat</string>
		<string>f</string>
	</array>
	<key>StandardErrorPath</key>
	<string>/tmp/local.com.getnpr.wesat.err</string>
	<key>StandardOutPath</key>
	<string>/tmp/local.com.getnpr.wesat.out</string>

	<key>StartCalendarInterval</key>
<!-- 		<key>Comment</key>
			<string>Monday is "1" Sunday can be "0" or "7"</string>
--> 
	<array>
		<dict>
			<key>Hour</key>
			<integer>8</integer>
			<key>Minute</key>
			<integer>22</integer>
			<key>Weekday</key>
			<integer>6</integer>
		</dict>
	</array>
</dict>
</plist>

com.getnpr.wesun.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>EnvironmentVariables</key>
	<dict>
		<key>PATH</key>
		<string>/Users/bierman/Documents/Applications/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin</string>
	</dict>
	<key>Label</key>
	<string>local.com.getnpr.wesun</string>
	<key>ProgramArguments</key>
	<array>
		<string>/Users/bierman/Documents/Applications/bin/getnpr.sh</string>
		<string>wesun</string>
		<string>f</string>
	</array>
	<key>StandardErrorPath</key>
	<string>/tmp/local.com.getnpr.wesun.err</string>
	<key>StandardOutPath</key>
	<string>/tmp/local.com.getnpr.wesun.out</string>
	<key>StartCalendarInterval</key>
	<array>
		<dict>
			<key>Hour</key>
			<integer>8</integer>
			<key>Minute</key>
			<integer>22</integer>
			<key>Weekday</key>
			<integer>7</integer>
		</dict>
	</array>
</dict>
</plist>

1. Put these in ~/Library/LaunchAgents
2. Test: host$ plutil -lint ~/Library/LaunchAgents/com.getnpr.wesun.plist
3. Start them: host$ launchctl load -w ~/Library/LaunchAgents/com.getnpr.wesun.plist
4. Stop them: host$ launchctl unload ~/Library/LaunchAgents/com.getnpr.wesun.plist
5. List them: host$ launchctl list | grep "getnpr"

Details http://launchd.info/