Replace aliases on enter

PSReadlineAliasReplacement.ps1

Set-PSReadLineKeyHandler -Chord 'Enter' -BriefDescription 'Replace aliases on enter' -ScriptBlock {
    try {
        $ast = $tokens = $parseErrors = $cursor = $null
        [Microsoft.PowerShell.PSConsoleReadLine]::GetBufferState(
            [ref]$ast,
            [ref]$tokens,
            [ref]$parseErrors,
            [ref]$cursor
        )

        $commands = $ast.FindAll({
                param($node) $node -is [Management.Automation.Language.CommandAst]
            },
            $true
        ) | Sort-Object { $_.CommandElements[0].Extent.StartOffset } -Descending

        foreach ($cmd in $commands) {
            $commandName = $cmd.GetCommandName()
            if (-not $commandName) {
                continue
            }

            if ($commandName -in 'cd', 'dir', 'ls', 'z') {
                # i prefer the shorter version here.
                continue
            }

            $alias = $ExecutionContext.SessionState.InvokeCommand.GetCommand(
                $commandName,
                [System.Management.Automation.CommandTypes]::Alias
            )
            if (-not $alias.ResolvedCommandName) {
                continue
            }

            $extent = $cmd.CommandElements[0].Extent
            $length = $extent.EndOffset - $extent.StartOffset
            [Microsoft.PowerShell.PSConsoleReadLine]::Replace(
                $extent.StartOffset,
                $length,
                $alias.ResolvedCommandName
            )
        }
    }
    finally {
        [Microsoft.PowerShell.PSConsoleReadLine]::AcceptLine()
    }
}