Windows PowerShell command on Get-command Clear-History

NAME

Clear-History

SYNOPSIS

Deletes entries from the command history.

SYNTAX

Clear-History [[-Count] ] [-CommandLine ] [-Confirm] [-Newest] [-WhatIf] []

Clear-History [[-Id] ] [[-Count] ] [-Confirm] [-Newest] [-WhatIf] []

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.

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. Required? false Position? named Default value None Accept pipeline input? False Accept wildcard characters? false

-Confirm []

Prompts you for confirmation before running the cmdlet. Required? false 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. Required? false 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.

Required? false 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. Required? false Position? named Default value False Accept pipeline input? False Accept wildcard characters? false

-WhatIf []

Shows what would happen if the cmdlet runs. The cmdlet is not run. Required? false Position? named Default value False Accept pipeline input? False Accept wildcard characters? false This cmdlet supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, WarningVariable, OutBuffer, PipelineVariable, and OutVariable. For more information, see about_CommonParameters (https:/go.microsoft.com/fwlink/?LinkID=113216).

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.

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.