名前
    Get-History
    
概要
    Gets a list of the commands entered during the current session.
    
構文
    Get-History [[-Id] [<Int64[]>]] [[-Count] [<Int32>]] [<CommonParameters>]
    
    
説明
    The Get-History cmdlet gets the session history, that is, the list of commands entered during the current session.
    
    Windows PowerShell automatically maintains a history of each session. The number of entries in the session history
     is determined by the value of the $MaximumHistoryCount preference variable. Beginning in Windows PowerShell 3.0, 
    the default value is 4096.
    
    You can save the session history in XML or CSV format. By default, history files are saved in the home directory, 
    but you can save the file in any location.
    
    For more information about the history features in Windows PowerShell, see about_History (http://go.microsoft.com/
    fwlink/?LinkID=113233).
    

パラメーター
    -Count [<Int32>]
        Displays the specified number of the most recent history entries. By, default, Get-History gets all entries in
         the session history. If you use both the Count and Id parameters in a command, the display ends with the comm
        and that is specified by the Id parameter.
        
        In Windows PowerShell 2.0, by default, Get-History gets the 32 most recent entries.
        
        必須                         false
        位置                         2
        既定値                       none
        パイプライン入力を許可する   false
        ワイルドカード文字を許可する false
        
    -Id [<Int64[]>]
        Specifies the ID number of an entry in the session history. Get-History gets only the specified entry. If you 
        use both the Id and Count parameters in a command, Get-History gets the most recent entries ending with the en
        try specified by the Id parameter.
        
        必須                         false
        位置                         1
        既定値                       none
        パイプライン入力を許可する   true (ByValue)
        ワイルドカード文字を許可する false
        
    <CommonParameters>
        このコマンドレットは、次の共通パラメーターをサポートします: Verbose、
        Debug、ErrorAction、ErrorVariable、WarningAction、WarningVariable、
        OutBuffer, PipelineVariable、および OutVariable。詳細については、
        about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216) 
        を参照してください。 
    
入力
    Int64
        
        
    
        You can pipe a history ID to Get-History.
    
    
出力
    Microsoft.PowerShell.Commands.HistoryInfo
        
        
    
        Get-History returns a history object for each history item that it gets.
    
    
メモ
    
    
        The session history is a list of the commands entered during the session. The session history represents the o
        rder of execution, the status, and the start and end times of the command. As you enter each command, Windows 
        PowerShell adds it to the history so that you can reuse it. For more information about the command history, se
        e about_History (http://go.microsoft.com/fwlink/?LinkID=113233).
        Beginning in Windows PowerShell 3.0, the default value of the $MaximumHistoryCount preference variable is 4096
        . In Windows PowerShell 2.0, the default value is 64. For more information about the $MaximumHistoryCount vari
        able, see about_Preference_Variables (http://go.microsoft.com/fwlink/?LinkID=113248).
    
    -------------------------- EXAMPLE 1 --------------------------
    
    PS C:\>Get-History
    
    
    This command gets the entries in the session history. The default display shows each command and its ID, which ind
    icates the order of execution.
    
    
    
    
    
    
    
    -------------------------- EXAMPLE 2 --------------------------
    
    PS C:\>Get-History | Where-Object {$_.CommandLine -like "*Service*"}
    
    
    This command gets entries in the command history that include "service". The first command gets all entries in the
     session history. The pipeline operator (|) passes the results to the Where-Object cmdlet, which selects only the 
    commands that include "service".
    
    
    
    
    
    
    
    -------------------------- EXAMPLE 3 --------------------------
    
    PS C:\>Get-History -ID 7 -Count 5 | Export-Csv History.csv
    
    
    This command gets the five most recent history entries ending with entry 7. The pipeline operator (|) passes the r
    esult to the Export-Csv cmdlet, which formats the history as comma-separated text and saves it in the History.csv 
    file. The file includes the data that is displayed when you format the history as a list, including the status and
     start and end times of the command.
    
    
    
    
    
    
    
    -------------------------- EXAMPLE 4 --------------------------
    
    PS C:\>Get-History -Count 1
    
    
    This command gets the last (most recently entered) command in the command history. It uses the Count parameter to 
    display just one command. By default, Get-History gets the most recent commands. This command can be abbreviated t
    o "h -c 1" and is equivalent to pressing the up-arrow key.
    
    
    
    
    
    
    
    -------------------------- EXAMPLE 5 --------------------------
    
    PS C:\>Get-History | Format-List -Property *
    
    
    This command displays all of the properties of entries in the session history. The pipeline operator (|) passes th
    e results of a Get-History command to the Format-List cmdlet, which displays all of the properties of each history
     entry, including the ID, status, and start and end times of the command.
    
    
    
    
    
    
    
    
関連するリンク
    Online Version: http://go.microsoft.com/fwlink/p/?linkid=289585
    Add-History 
    Clear-History 
    Invoke-History 
    about_History