延迟的 PowerShell 命令输出

Question

I have a PowerShell script. Sometimes a command fails but only outputs a message (no error code) that will be missed due to other commands executing.

I don't have an error code to handle, can't break execution and can't match the text output to determine if its an error as it varies widely.

How can I capture that commands output so I can display it at the end of the script?

Answer 1

This can be found in the error object. Error is an array of errors, and [0] is the latest error to occur. Error is an object that can be viewed.

($Error[0]).InvocationInfo.Line

The line above will give you the whole line in the script, that generated the error. The InvocationInfo property will not exist for errors from the command line.