Turns script debugging features on and off, sets the trace level, and toggles strict mode.
Syntax
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Set-PSDebug [-Off] [<CommonParameters>] Set-PSDebug [-Step] [-Strict] [-Trace <int>] [<CommonParameters>] |
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Description
The Set-PSDebug cmdlet turns script debugging features on and off, sets the trace level, and toggles strict mode.
When the Trace parameter is set to 1, each line of script is traced as it is executed. When the parameter is set to 2, variable assignments, function calls, and script calls are also traced. If the Step parameter is specified, you are prompted before each line of the script is executed.
Parameters
-Off
Turns off all script debugging features.
Note: A "Set-StrictMode -off" command disables the verification set by a "set-psdebug -strict" command. For more information, see Set-StrictMode.
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Required? |
false |
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Position? |
named |
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Default Value |
none |
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Accept Pipeline Input? |
false |
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Accept Wildcard Characters? |
false |
-Step
Turns on script stepping. Before each line is run, the user is prompted to stop, continue, or enter a new interpreter level to inspect the state of the script.
Note: Specifying the Step parameter automatically sets a Trace level of 1.
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Required? |
false |
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Position? |
named |
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Default Value |
none |
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Accept Pipeline Input? |
false |
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Accept Wildcard Characters? |
false |
-Strict
Specifies that the interpreter should throw an exception if a variable is referenced before a value is assigned to the variable.
Note: A "Set-StrictMode -off" command disables the verification set by a "set-psdebug -strict" command. For more information, see Set-StrictMode.
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Required? |
false |
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Position? |
named |
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Default Value |
none |
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Accept Pipeline Input? |
false |
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Accept Wildcard Characters? |
false |
-Trace <int>
Specifies the trace level:
0 - Turn script tracing off
1 - Trace script lines as they are executed
2 - Trace script lines, variable assignments, function calls, and scripts.
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Required? |
false |
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Position? |
named |
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Default Value |
none |
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Accept Pipeline Input? |
false |
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Accept Wildcard Characters? |
false |
<CommonParameters>
This command supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, OutBuffer, OutVariable, WarningAction, and WarningVariable. For more information, see about_CommonParameters.
Inputs and Outputs
The input type is the type of the objects that you can pipe to the cmdlet. The return type is the type of the objects that the cmdlet returns.
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Inputs |
None You cannot pipe input to this cmdlet. |
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Outputs |
None This cmdlet does not return any output. |
Example 1
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C:\PS>set-psdebug -trace 2; foreach ($i in 1..3) {$i}
DEBUG: 1+ Set-PsDebug -trace 2; foreach ($i in 1..3) {$i}
DEBUG: 1+ Set-PsDebug -trace 2; foreach ($i in 1..3) {$i}
1
DEBUG: 1+ Set-PsDebug -trace 2; foreach ($i in 1..3) {$i}
2
DEBUG: 1+ Set-PsDebug -trace 2; foreach ($i in 1..3) {$i}
3
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Description
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This command sets the trace level to 2, and then runs a script that displays the numbers 1, 2, and 3.
Example 2
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C:\PS>set-psdebug -step; foreach ($i in 1..3) {$i}
DEBUG: 1+ Set-PsDebug -step; foreach ($i in 1..3) {$i}
Continue with this operation?
1+ Set-PsDebug -step; foreach ($i in 1..3) {$i}
[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help
(default is "Y"):a
DEBUG: 1+ Set-PsDebug -step; foreach ($i in 1..3) {$i}
1
2
3
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Description
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This command turns on stepping and then
runs a script that displays the numbers 1, 2, and 3.
Example 3
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C:\PS>set-psdebug -off; foreach ($i in 1..3) {$i}
1
2
3
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Description
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This command turns off all debugging features, and then runs a script that displays the numbers 1, 2, and 3.
Example 4
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C:\PS>set-psdebug -strict; $NewVar The variable $NewVar cannot be retrieved because it has not been set yet. At line:1 char:28 + Set-PsDebug -strict;$NewVar <<<< |
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Description
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This command puts the interpreter in strict mode, and attempts to access a variable that has not yet been set.