This is one of the old DOS batch file tricks. Really simple, really useful, and still works after 20+ years.
When you need to send the output of a script to a file:
IN the case of Azure startup tasks and you want a quick way to see what happened, what is happening simply define this in the startup task.
<Task commandLine="DSInstall\InstallDS.cmd >> %Public%\Documents\StartupTask.log" executionContext="elevated" />
The important thin got remember is that this will always append a previous file. So if the script runs multiple times, you will have the entries repeat. And this is also useful.
Most developers I would with would simply be looking at me and say: Just turn on Intellitrace, support is right there. Well, that is fine – I will let them do that. But yet, I bet they find this useful.
There is also the final end tag of “2>>&1” that can be used to be sure that error messages are logged (as the “>>” takes all of the console output and logs it to file).