At my end with launchd - bash

Question

Hi all and thanks for reading this. I have the below launchd 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>com.me.sendip</string>
<key>Program</key>
<string>/Users/me/Documents/sendip.sh</string>
<key>StartInterval</key>
<integer>60</integer>
<key>StandardErrorPath</key>
<string>/Users/me/Desktop/sendiperr.log</string>
<key>StandardOutPath</key>
<string>/Users/me/Desktop/sendip.log</string>
</dict>
I also have the below script
/Users/me/Documents/Scripts/ip.sh | mail -s "Laptop ip" me#gmail.com
I have tried troubleshooting with all the tools here. The script fires with an empty log file on boot but after that nothing.
Someone please help. I am totally stumped and I am sure its something silly. Much appreciated.

Answer 1

It turns out launchd abandons the sub processes of the script I was trying to run. this is a common problem as it turns out. Found the answer here.

Answer 2

Hmmm. I run a script at hourly intervals using the following plist in 10.9.5.
<?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>Disabled</key>
<false/>
<key>Label</key>
<string>org.myorg.mytask</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/php</string>
<string>/path/to/myscript.php</string>
</array>
<key>QueueDirectories</key>
<array/>
<key>StartCalendarInterval</key>
<dict>
<key>Minute</key>
<integer>5</integer>
</dict>
<key>WatchPaths</key>
<array/>
</dict>
</plist>
That runs every hour at 5 minutes past the hour.
I think for you're looking to run once a minute, right? So your version would be:
<?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>Disabled</key>
<false/>
<key>Label</key>
<string>com.me.sendip</string>
<key>ProgramArguments</key>
<array>
<string>/Users/me/Documents/sendip.sh</string>
</array>
<key>QueueDirectories</key>
<array/>
<key>StartInterval</key>
<integer>60</integer>
<key>WatchPaths</key>
<array/>
</dict>
</plist>
You may need to start the service by running this command in Terminal: (it will require your password)
sudo launchctl load com.me.sendip
Edit: Here is a script with more explicit logging:
#!/bin/bash
OUTFILE='/Library/Logs/com.whatever.sendip.log'
ERRFILE='/Library/Logs/com.whatever.sendip.err.log'
SCRIPT='/Users/me/Documents/Scripts/ip.sh'
TARGET_EMAIL='me#gmail.com'
TARGET_SUBJECT='Laptop ip'
VERBOSE=1
if [ "$VERBOSE" -ne 0 ]; then
date >>"$OUTFILE"
date >>"$ERRFILE"
echo -n 'Current user: ' >>"$OUTFILE"
whoami >>"$OUTFILE"
fi
INFO=$("$SCRIPT" 2>>"$ERRFILE")
echo "$INFO" | mail -s "$TARGET_SUBJECT" "$TARGET_EMAIL" >>"$OUTFILE" 2>>"$ERRFILE"
ERROR_CODE="$?"
if [ "$ERROR_CODE" -ne 0 ]; then
echo "Result: Error Code $ERROR_CODE" >>"$OUTFILE"
echo "Info: $INFO" >>"$OUTFILE"
elif [ "$VERBOSE" -ne 0 ]; then
echo "Result: Success" >>"$OUTFILE"
echo "Info: $INFO" >>"$OUTFILE"
fi