Clear-History

Module:
Microsoft.PowerShell.Core
Deletes entries from the command history.

Syntax 

Clear-History
     [[-Id] <Int32[]>]
     [[-Count] <Int32>]
     [-Newest]
     [-WhatIf]
     [-Confirm]
     [<CommonParameters>]
Clear-History
     [-CommandLine <String[]>]
     [[-Count] <Int32>]
     [-Newest]
     [-WhatIf]
     [-Confirm]
     [<CommonParameters>]

Description

The Clear-History cmdlet deletes commands from the command history, that is, the list of commands entered during the current session.

Without parameters, Clear-History deletes all commands from the session history, but you can use the parameters of Clear-History to delete selected commands.

Examples

Example 1: Delete all commands 

PS C:\> Clear-History

This command deletes all commands from the session history.

Example 2: Delete commands by using history IDs 

PS C:\> Clear-History -Id 23, 25

This command deletes the commands that have history IDs 23 and 25.

Example 3: Delete specific commands 

PS C:\> Clear-History -Command *help*, *command

This command deletes commands that include "help" or end in "command".

Example 4: Delete the newest commands 

PS C:\> Clear-History -Count 10 -Newest

This command deletes the 10 newest commands from the history.

Example 5: Delete the oldest commands 

PS C:\> Clear-History -Id 10 -Count 3

This command deletes the three oldest commands, starting with the entry with ID 10.

Optional Parameters

-CommandLine

Specifies commands that this cmdlet deletes. If you enter more than one string, Clear-History deletes commands that have any of the strings.

Type: String[]
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Confirm

Prompts you for confirmation before running the cmdlet.

Type: SwitchParameter
Aliases: cf
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False
-Count

Specifies the number of history entries that this cmdlet clears, starting with the oldest entry in the history.

If you use the Count and Id parameters in the same command, the cmdlet clears the number of entries specified by the Count parameter, starting with the entry specified by the Id parameter. For example, if Count is 10 and Id is 30, Clear-History clears items 21 through 30 inclusive.

If you use the Count and CommandLine parameters in the same command, Clear-History clears the number of entries specified by the Count parameter, starting with the entry specified by the CommandLine parameter.

Type: Int32
Position: 1
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Id

Specifies the history IDs of commands that this cmdlet deletes.

To find the history ID of a command, use the Get-History cmdlet.

Type: Int32[]
Position: 0
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-Newest

Indicates that this cmdlet deletes the newest entries in the history. By default, Clear-History deletes the oldest entries in the history.

Type: SwitchParameter
Position: Named
Default value: None
Accept pipeline input: False
Accept wildcard characters: False
-WhatIf

Shows what would happen if the cmdlet runs. The cmdlet is not run.

Type: SwitchParameter
Aliases: wi
Position: Named
Default value: False
Accept pipeline input: False
Accept wildcard characters: False

Inputs

None

You cannot pipe objects to this cmdlet.

Outputs

None

This cmdlet does not generate any output.

Notes

  • The session history is a list of the commands entered during the session. You can view the history, add and delete commands, and run commands from the history. For more information, see about_History.
  • Deleting a command from the history does not change the history IDs of the remaining items in the command history.

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