How to create permanent PowerShell Aliases

UPDATED - January 2021

It's possible to store in a profile.ps1 file any PowerShell code to be executed each time PowerShell starts. There are at least 6 different paths where to store the code depending on which user has to execute it. We will consider only 2 of them: the "all users" and the "only your user" paths (follow the previous link for further options).

To answer your question, you only have to create a profile.ps1 file containing the code you want to be executed, that is:

New-Alias Goto Set-Location

and save it in the proper path:

"$Home\Documents" (usually C:\Users\\Documents): only your user will execute the code. This is the recommended location You can quickly find your profile location by running echo $profile in PowerShell

$PsHome (C:\Windows\System32\WindowsPowerShell\v1.0): every user will execute this code

IMPORTANT: remember you need to restart your PowerShell instances to apply the changes.

TIPS

If both paths contain a profile.ps1 file, the all-users one is executed first, then the user-specific one. This means the user-specific commands will overwrite variables in case of duplicates or conflicts.

Always put the code in the user-specific profile if there is no need to extend its execution to every user. This is safer because you don't pollute other users' space (usually, you don't want to do that). Another advantage is that you don't need administrator rights to add the file to your user-space (you do for anything in C:\Windows\System32).

If you really need to execute the profile code for every user, mind that the $PsHome path is different for 32bit and 64bit instances of PowerShell. You should consider both environments if you want to always execute the profile code. The paths are: C:\Windows\System32\WindowsPowerShell\v1.0 for the 64bit environment C:\Windows\SysWow64\WindowsPowerShell\v1.0 for the 32bit one (Yeah I know, the folder naming is counterintuitive, but it's correct).

C:\Windows\System32\WindowsPowerShell\v1.0 for the 64bit environment

C:\Windows\SysWow64\WindowsPowerShell\v1.0 for the 32bit one (Yeah I know, the folder naming is counterintuitive, but it's correct).

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It's not a good idea to add this kind of thing directly to your $env:WINDIR powershell folders, unless you truly want your alias to be global.
The recommended way is to add it to your personal profile:

cd $env:USERPROFILE\Documents
md WindowsPowerShell -ErrorAction SilentlyContinue
cd WindowsPowerShell
New-Item Microsoft.PowerShell_profile.ps1 -ItemType "file" -ErrorAction SilentlyContinue
powershell_ise.exe .\Microsoft.PowerShell_profile.ps1

Now add your alias to the Microsoft.PowerShell_profile.ps1 file that is now opened:

function Do-ActualThing {
    # do actual thing
}

Set-Alias MyAlias Do-ActualThing

Then save it, and refresh the current session with:

. $profile

Note: Just in case, if you get permission issue like

CategoryInfo : SecurityError: (:) [], PSSecurityException + FullyQualifiedErrorId : UnauthorizedAccess

Try the below command and refresh the session again.

Set-ExecutionPolicy -ExecutionPolicy RemoteSigned

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Open a Windows PowerShell window and type:

notepad $profile

Then create a function, such as:

function goSomewhereThenOpenGoogleThenDeleteSomething {
    cd C:\Users\
    Start-Process -FilePath "http://www.google.com"
    rm fileName.txt
}

Then type this under the function name:

Set-Alias google goSomewhereThenOpenGoogleThenDeleteSomething

Now you can type the word "google" into Windows PowerShell and have it execute the code within your function!

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2018, Windows 10

You can link to any file or directory with the help of a simple PowerShell script.

Writing a file shortcut script

Open Windows PowerShell ISE. In the script pane write:

New-Alias ${shortcutName} ${fullFileLocation}

Then head to the command-line pane. Find your PowerShell user profile address with echo $profile. Save the script in this address.

https://i.stack.imgur.com/j6KuB.png

The script in PowerShell's profile address will run each time you open powershell. The shortcut should work with every new PowerShell window.

Writing a directory shortcut script

It requires another line in our script.

function ${nameOfFunction} {set-location ${directory_location}}
New-Alias ${shortcut} ${nameOfFunction} 

The rest is exactly the same.

https://i.stack.imgur.com/wgKE1.png

Enable PowerShell Scripts

https://i.stack.imgur.com/NjZrN.png

Scroll down to the PowerShell section, tick the "Change execution policy ..." option, and apply.

https://i.stack.imgur.com/0DFPZ.png

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Just to add to this list of possible locations...

This didn't work for me: \Users\{ME}\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1

However this did: \Users\{ME}\OneDrive\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1

If you don't have a profile or you're looking to set one up, run the following command, it will create the folder/files necessary and even tell you where it lives! New-Item -path $profile -type file -force

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to create the profile1.psl file, type in the following command:

new-item $PROFILE.CurrentUserAllHosts -ItemType file -Force

to access the file, type in the next command:

ise $PROFILE.CurrentUserAllHosts

note if you haven't done this before, you will see that you will not be able to run the script because of your execution policy, which you need to change to Unrestricted from Restricted (default).

to do that close the script and then type this command:

Set-ExecutionPolicy -Scope CurrentUser

then:

RemoteSigned

then this command again:

ise $PROFILE.CurrentUserAllHosts

then finally type your aliases in the script, save it, and they should run every time you run powershell, even after restarting your computer.

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I found that I can run this command:

notepad $PROFILE.CurrentUserAllHosts

and it opens my default powershell profile(for Current User, All Hosts) . I found that here.

Then add an alias. For example, here is my alias of jn for jupyter notebook (I hate typing out the cumbersome jupyter notebook every time):

Set-Alias -Name jn -Value C:\Users\words\Anaconda3\Scripts\jupyter-notebook.exe

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This is a little bit fancy... but it works:

Step 1: Create a Powershell Profile:

FILE: install_profile.ps1
# THIS SCRIPT BLOWS AWAY YOUR DEFAULT POWERSHELL PROFILE SCRIPT
#   AND INSTALLS A POINTER TO A GLOBAL POWERSHELL PROFILE

$ErrorActionPreference = "Stop"

function print ([string]$msg)
{
    Write-Host -ForegroundColor Green $msg
}

print ""

# User's Powershell Profile
$psdir  = "$env:USERPROFILE\Documents\WindowsPowerShell"
$psfile = $psdir + "\Microsoft.PowerShell_profile.ps1"

print "Creating Directory: $psdir"
md $psdir -ErrorAction SilentlyContinue | out-null

# this is your auto-generated powershell profile to be installed
$content = @(
    "",
    ". ~/Documents/tools/profile.ps1",
    ""
)

print "Creating File: $psfile"
[System.IO.File]::WriteAllLines($psfile, $content)

print ""

# Make sure Powershell profile is readable
Set-ExecutionPolicy -Scope CurrentUser Unrestricted

Step 2: then in tools ~/Documents/tools/profile.ps1:

function Do-ActualThing {
    # do actual thing
}

Set-Alias MyAlias Do-ActualThing

Step 3:

$ Set-ExecutionPolicy -Scope CurrentUser Unrestricted $ . ./install_profile.ps1

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It's a matter of personal taste, but I prefer to store my aliases together in a separate file and call Import-Alias in the profile.

$profileDir = Split-Path $PROFILE -Parent
$profileFile = Join-Path $profileDir profile.ps1
$aliasFile = Join-Path $profileDir aliases.csv
New-Alias -Name npp -Value "C:\Program Files\Notepad++\notepad++.exe" -Description "Notepad++"
Export-Alias -Name npp -Path $aliasFile -Append
ise $profileFile

Then in the ISE, put this line in your profile.ps1

Import-Alias -Path (Join-Path $PSScriptRoot aliases.csv)

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