Is it possible to implement the following shell script completely as a launchd plist to generate a signature with timestamp in the StandardErrorPath / StandardErrorPath files?
#!/bin/sh
echo "Hi, your FOO.plist was here at $(date)"
This one doesn't work:
…
<key>ProgramArguments</key>
<array>
<string>echo</string>
<string>"Hi, your FOO.plist was here at $(date)"</string>
</array>
…