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ABOUT HISTORY
Short Description
Describes how to get and run commands in the command history.
Long Description
When you enter a command at the command prompt, PowerShell saves the
command in the command history. You can use the commands in the history as
a record of your work. And, you can recall and run the commands from the
command history.
PowerShell has two different history providers: the built-in history and
the history managed by the PSREADLINE module. The histories are managed
separately, but both histories are available in sessions where PSREADLINE
is loaded.
Using the PSReadLine history
The PSReadLine history tracks the commands used in all PowerShell sessions.
The history is written to a central file per host. That history file is
available to all sessions and contains all past history. The history is not
deleted when the session ends. Also, that history cannot be managed by the
*-History cmdlets. For more information, see about_PSReadLine.
Using the built-in session history
The built-in history only tracks the commands used in the current session.
The history is not available to other sessions and is deleted when the
session ends.
History Cmdlets
PowerShell has a set of cmdlets that manage the command history.
Cmdlet Alias Description
---------------- ------- --------------------------------------------
Get-History h Gets the command history.
Invoke-History r Runs a command in the command history.
Add-History Adds a command to the command history.
Clear-History clhy Deletes commands from the command history.
Keyboard Shortcuts for Managing History
In the PowerShell console, you can use the following shortcuts to manage
the command history.
- UpArrow - Displays the previous command.
- DownArrow - Displays the next command.
- F7 - Displays the command history.
- ESC - To hide the history.
- F8 - Finds a command. Type one or more characters then press F8. Press
F8 again the next instance.
- F9 - Find a command by history ID. Type the history ID then press F9.
Press F7 to find the ID.
- #<string>Tab - Search the history for *<string>* and returns the most
recent match. If you press Tab repeatedly, it cycles through the
matching items in your history.
[!NOTE] These key bindings are implemented by the console host
application. Other applications, such as Visual Studio Code or Windows
Terminal, can have different key bindings. The bindings can be overridden
by the PSReadLine module. PSReadLine loads automatically when you start a
PowerShell session. With PSReadLine loaded, F7 and F9 are not bound to
any function. PSReadLine does not provide equivalent functionality. For
more information, see about_PSReadLine.
MaximumHistoryCount
The $MaximumHistoryCount preference variable determines the maximum number
of commands that PowerShell saves in the command history. The default value
is 4096.
For example, the following command lowers the $MaximumHistoryCount to 100
commands:
$MaximumHistoryCount = 100
To apply the setting, restart PowerShell.
To save the new variable value for all your PowerShell sessions, add the
assignment statement to a PowerShell profile. For more information about
profiles, see about_Profiles.
For more information about the $MaximumHistoryCount preference variable,
see about_Preference_Variables.
Order of Commands in the History
Commands are added to the history when the command finishes executing, not
when the command is entered. If commands take some time to be completed, or
if the commands are executing in a nested prompt, the commands might appear
to be out of order in the history. Commands that are executing in a nested
prompt are completed only when you exit the prompt level.
See Also
- about_Line_Editing
- about_Preference_Variables
- about_Profiles
- about_Variables
- about_PSReadLine