How to make PowerShell tab completion work like Bash

Let's say I have the following files in my current directory:

buildBar.bat
buildFoo.bat
buildHouse.bat

And I type the following at my command prompt, ./bu and then TAB.

  • In Bash, it gets expanded to ./build

  • In PowerShell, it gets expanded to ./buildBar.bat -- the first item in the list.

  • In Cmd, the behavior is the same as PowerShell.

I prefer the Bash behaviour - is there a way to make PowerShell behave like Bash?


New versions of PowerShell include PSReadline, which can be used to do this:

Set-PSReadlineKeyHandler -Key Tab -Function Complete

To make it permanent, put this command into C:\Users\[User]\Documents\WindowsPowerShell\profile.ps1.


It is now possible to get PowerShell to do Bash-style completion, using PSReadline.

Check out blog post Bash-like tab completion in PowerShell.


tab only completes the command name not its previous arguments/parameters.

to also autocomplete the complete command with arguments from history set the below keybinding.

Set-PSReadlineKeyHandler -Key UpArrow -Function HistorySearchBackward
Set-PSReadlineKeyHandler -Key DownArrow -Function HistorySearchForward

Now, type few characters of command name and use up/down arrow to autocomplete this command (with arguments) from history.

real time saver.