Functions/Get-FileEncoding.ps1
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# source: https://gist.github.com/jpoehls/2406504 function Get-FileEncoding { <# .SYNOPSIS To get the file encoding of a file .DESCRIPTION To get the file encoding of a file .PARAMETER Path The file that you want to check its encoding. .EXAMPLE Get-FileEncoding -Path .\UTF16-BigEndian.txt Unicode UTF-16 Big-Endian .EXAMPLE Get-FileEncoding -Path .\UTF16-LittleEndian.txt Unicode UTF-16 Little-Endian #> [CmdletBinding()] Param ( [Parameter(Mandatory, HelpMessage = 'Please enter the path to a file', ValueFromPipelineByPropertyName)] [string] $Path ) if (Test-Path -Path $Path){ [byte[]] $byte = Get-Content -Encoding byte -ReadCount 4 -TotalCount 4 -Path $Path #Write-Host Bytes: $byte[0] $byte[1] $byte[2] $byte[3] if ( $byte[0] -eq 0xef -and $byte[1] -eq 0xbb -and $byte[2] -eq 0xbf ) { # EF BB BF (UTF8) Write-Output -inputobject 'UTF8' } elseif ($byte[0] -eq 0xfe -and $byte[1] -eq 0xff) { # FE FF (UTF-16 Big-Endian) Write-Output -inputobject 'Unicode UTF-16 Big-Endian' } elseif ($byte[0] -eq 0xff -and $byte[1] -eq 0xfe) { # FF FE (UTF-16 Little-Endian) Write-Output -inputobject 'Unicode UTF-16 Little-Endian' } elseif ($byte[0] -eq 0 -and $byte[1] -eq 0 -and $byte[2] -eq 0xfe -and $byte[3] -eq 0xff) { # 00 00 FE FF (UTF32 Big-Endian) Write-Output -inputobject 'UTF32 Big-Endian' } elseif ($byte[0] -eq 0xfe -and $byte[1] -eq 0xff -and $byte[2] -eq 0 -and $byte[3] -eq 0) { # FE FF 00 00 (UTF32 Little-Endian) Write-Output -inputobject 'UTF32 Little-Endian' } elseif ($byte[0] -eq 0x2b -and $byte[1] -eq 0x2f -and $byte[2] -eq 0x76 -and ($byte[3] -eq 0x38 -or $byte[3] -eq 0x39 -or $byte[3] -eq 0x2b -or $byte[3] -eq 0x2f) ) { # 2B 2F 76 (38 | 38 | 2B | 2F) Write-Output -inputobject 'UTF7' } elseif ( $byte[0] -eq 0xf7 -and $byte[1] -eq 0x64 -and $byte[2] -eq 0x4c ) { # F7 64 4C (UTF-1) Write-Output -inputobject 'UTF-1' } elseif ($byte[0] -eq 0xdd -and $byte[1] -eq 0x73 -and $byte[2] -eq 0x66 -and $byte[3] -eq 0x73) { # DD 73 66 73 (UTF-EBCDIC) Write-Output -inputobject 'UTF-EBCDIC' } elseif ( $byte[0] -eq 0x0e -and $byte[1] -eq 0xfe -and $byte[2] -eq 0xff ) { # 0E FE FF (SCSU) Write-Output -inputobject 'SCSU' } elseif ( $byte[0] -eq 0x0e -and $byte[1] -eq 0xfe -and $byte[2] -eq 0xff ) { Write-Output -inputobject 'SCSU' } elseif ( $byte[0] -eq 0xfb -and $byte[1] -eq 0xee -and $byte[2] -eq 0x28 ) { # FB EE 28 (BOCU-1) Write-Output -inputobject 'BOCU-1' } elseif ($byte[0] -eq 0x84 -and $byte[1] -eq 0x31 -and $byte[2] -eq 0x95 -and $byte[3] -eq 0x33) { # 84 31 95 33 (GB-18030) Write-Output -inputobject 'GB-18030' } else { Write-Output -inputobject 'ASCII' } } else { Write-Error -Message "The file [$Path] does not exist." } } |