Write-Debug is a Windows PowerShell command used to write debug messages to the console. It is a useful tool for troubleshooting and debugging scripts, as it allows you to see what is happening inside your script as it is running. This article will explain the syntax, parameters, inputs, outputs, examples, and tips for using the Write-Debug command.
Syntax
The syntax for the Write-Debug command is as follows:
- Write-Debug [-Message] <String> [-Debugger] <String> [-ErrorAction <ActionPreference>] [-ErrorVariable <String>] [-OutVariable <String>] [-OutBuffer <Int32>] [-Verbose] [-WarningAction <ActionPreference>] [-WarningVariable <String>] [-WhatIf] [-Confirm] [ <CommonParameters>]
Parameters
The Write-Debug command has several parameters that can be used to customize its behavior. These parameters are listed below.
| Parameter | Description |
|---|---|
| -Message | The message to be written to the console. |
| -Debugger | The name of the debugger to use. |
| -ErrorAction | The action to take if an error occurs. |
| -ErrorVariable | The name of the variable to store any errors that occur. |
| -OutVariable | The name of the variable to store the output of the command. |
| -OutBuffer | The maximum number of objects to store in the output buffer. |
| -Verbose | Enables verbose output. |
| -WarningAction | The action to take if a warning occurs. |
| -WarningVariable | The name of the variable to store any warnings that occur. |
| -WhatIf | Enables WhatIf mode, which shows what would happen if the command were to run. |
| -Confirm | Enables Confirm mode, which prompts for confirmation before running the command. |
Inputs
The Write-Debug command takes a string as its input. This string can be a message, a variable, or an expression.
Outputs
The Write-Debug command does not produce any output, but it does write the specified message to the console.
Examples
The following examples show how to use the Write-Debug command.
- To write the message “This is a debug message” to the console, use the following command:
- Write-Debug -Message “This is a debug message”
- To write the value of the variable $myVar to the console, use the following command:
- Write-Debug -Message $myVar
- To write the result of the expression (1 + 1) to the console, use the following command:
- Write-Debug -Message (1 + 1)
Tips
Here are some tips for using the Write-Debug command:
- Use the -Verbose parameter to enable verbose output.
- Use the -ErrorAction and -WarningAction parameters to specify how to handle errors and warnings.
- Use the -ErrorVariable and -WarningVariable parameters to store any errors or warnings that occur.
- Use the -OutBuffer parameter to specify the maximum number of objects to store in the output buffer.
- Use the -WhatIf and -Confirm parameters to enable WhatIf and Confirm mode.
Conclusion
The Write-Debug command is a useful tool for troubleshooting and debugging scripts. It allows you to write debug messages to the console, and provides several parameters for customizing its behavior. With these tips, you should now be able to use the Write-Debug command with confidence.