Simple File IO with insufficient parameter handling

FileOps.ps1

function Tail-File {
    [CmdletBinding()]
    param($Path,
        [System.Text.Encoding]$Encoding = $([System.Text.Encoding]::UTF8)
    )

    $File = Convert-Path $Path
    try {
        $Stream = New-Object System.IO.FileStream $File, "Open", "Read", "ReadWrite", 2048, "None"
    
        try {
            $Reader = New-Object System.IO.StreamReader ([IO.Stream]$Stream), $Encoding

            do {
                $line = $reader.ReadLine()
                if($line -ne $null) {
                    Write-Host $line
                } else {
                    Start-Sleep -milli 250
                }
            } until ($line -match '^end_of_log')
        } finally {
            if($Reader) {
                $Reader.Close()
                $Reader.Dispose()
            }
        }

    } finally {
        if($Stream) {
            $Stream.Dispose()
        }
    }
}

function Write-File {
    param(
        $Path,
        $Content,
        [System.Text.Encoding]$Encoding = $([System.Text.Encoding]::UTF8),
        [Switch]$Line
    )

    $File = Convert-Path $Path
    try {
        $Stream = New-Object System.IO.FileStream $File, "OpenOrCreate", "ReadWrite", "ReadWrite", 2048, "None"
        $Position = $Stream.Seek(0, "End")

        try {
            $Writer = New-Object System.IO.StreamWriter ([IO.Stream]$Stream), $Encoding
            $Writer.Write($Content)
            if($Line) {
                $Writer.Write("`n")
            }
        } finally {
            if($Writer) {
                $Writer.Flush()
                $Writer.Close()
                $Writer.Dispose()
            }
        }
    } finally {
        if($Stream) {
            $Stream.Dispose()
        }
    }
}