Powershell get encoding file type

Like I need to know file encoding type programmatically, I first search and found on internet a script which permit to do it. I just modified it to add some encoding type

On this page http://poshcode.org/2059 original code I also copied below (Sorry, I don't know original author for greetings)

<# .SYNOPSIS Gets file encoding. .DESCRIPTION The Get-FileEncoding function determines encoding by looking at Byte Order Mark (BOM). Based on port of C# code from http://www.west-wind.com/Weblog/posts/197245.aspx .EXAMPLE Get-ChildItem *.ps1 select FullName, @{n='Encoding';e={Get-FileEncoding $_.FullName}} where {$_.Encoding -ne 'ASCII'} This command gets ps1 files in current directory where encoding is not ASCII .EXAMPLE Get-ChildItem *.ps1 select FullName, @{n='Encoding';e={Get-FileEncoding $_.FullName}} where {$_.Encoding -ne 'ASCII'} foreach {(get-content $_.FullName) set-content $_.FullName -Encoding ASCII} Same as previous example but fixes encoding using set-content #>
function Get-FileEncoding
{
[CmdletBinding()] Param (
[Parameter(Mandatory = $True, ValueFromPipelineByPropertyName = $True)] [string]$Path
)

[byte[]]$byte = get-content -Encoding byte -ReadCount 4 -TotalCount 4 -Path $Path

if ( $byte[0] -eq 0xef -and $byte[1] -eq 0xbb -and $byte[2] -eq 0xbf )
{ Write-Output 'UTF8' }
elseif ($byte[0] -eq 0xfe -and $byte[1] -eq 0xff)
{ Write-Output 'Unicode' }
elseif ($byte[0] -eq 0 -and $byte[1] -eq 0 -and $byte[2] -eq 0xfe -and $byte[3] -eq 0xff)
{ Write-Output 'UTF32' }
elseif ($byte[0] -eq 0x2b -and $byte[1] -eq 0x2f -and $byte[2] -eq 0x76)
{ Write-Output 'UTF7'}
else
{ Write-Output 'ASCII' }
}

Below my little changes to detect more encoding format refering http://en.wikipedia.org/wiki/Byte_order_mark

<#
.SYNOPSIS
Gets file encoding.
.DESCRIPTION
The Get-FileEncoding function determines encoding by looking at Byte Order Mark (BOM).
Based on port of C# code from http://www.west-wind.com/Weblog/posts/197245.aspx
.EXAMPLE
Get-ChildItem  *.ps1 | select FullName, @{n='Encoding';e={Get-FileEncoding $_.FullName}} | where {$_.Encoding -ne 'ASCII'}
This command gets ps1 files in current directory where encoding is not ASCII
.EXAMPLE
Get-ChildItem  *.ps1 | select FullName, @{n='Encoding';e={Get-FileEncoding $_.FullName}} | where {$_.Encoding -ne 'ASCII'} | foreach {(get-content $_.FullName) | set-content $_.FullName -Encoding ASCII}
Same as previous example but fixes encoding using set-content


# Modified by F.RICHARD August 2010
# add comment + more BOM
# http://unicode.org/faq/utf_bom.html
# http://en.wikipedia.org/wiki/Byte_order_mark
#
# Do this next line before or add function in Profile.ps1
# Import-Module .\Get-FileEncoding.ps1
#>
function Get-FileEncoding
{
 [CmdletBinding()] 
 Param (
  [Parameter(Mandatory = $True, ValueFromPipelineByPropertyName = $True)] 
   [string]$Path
 )

 [byte[]]$byte = get-content -Encoding byte -ReadCount 4 -TotalCount 4 -Path $Path
 #Write-Host Bytes: $byte[0] $byte[1] $byte[2] $byte[3]

 # EF BB BF (UTF8)
 if ( $byte[0] -eq 0xef -and $byte[1] -eq 0xbb -and $byte[2] -eq 0xbf )
 { Write-Output 'UTF8' }

 # FE FF  (UTF-16 Big-Endian)
 elseif ($byte[0] -eq 0xfe -and $byte[1] -eq 0xff)
 { Write-Output 'Unicode UTF-16 Big-Endian' }

 # FF FE  (UTF-16 Little-Endian)
 elseif ($byte[0] -eq 0xff -and $byte[1] -eq 0xfe)
 { Write-Output 'Unicode UTF-16 Little-Endian' }

 # 00 00 FE FF (UTF32 Big-Endian)
 elseif ($byte[0] -eq 0 -and $byte[1] -eq 0 -and $byte[2] -eq 0xfe -and $byte[3] -eq 0xff)
 { Write-Output 'UTF32 Big-Endian' }

 # FE FF 00 00 (UTF32 Little-Endian)
 elseif ($byte[0] -eq 0xfe -and $byte[1] -eq 0xff -and $byte[2] -eq 0 -and $byte[3] -eq 0)
 { Write-Output 'UTF32 Little-Endian' }

 # 2B 2F 76 (38 | 38 | 2B | 2F)
 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) )
 { Write-Output 'UTF7'}

 # F7 64 4C (UTF-1)
 elseif ( $byte[0] -eq 0xf7 -and $byte[1] -eq 0x64 -and $byte[2] -eq 0x4c )
 { Write-Output 'UTF-1' }

 # DD 73 66 73 (UTF-EBCDIC)
 elseif ($byte[0] -eq 0xdd -and $byte[1] -eq 0x73 -and $byte[2] -eq 0x66 -and $byte[3] -eq 0x73)
 { Write-Output 'UTF-EBCDIC' }

 # 0E FE FF (SCSU)
 elseif ( $byte[0] -eq 0x0e -and $byte[1] -eq 0xfe -and $byte[2] -eq 0xff )
 { Write-Output 'SCSU' }

 # FB EE 28  (BOCU-1)
 elseif ( $byte[0] -eq 0xfb -and $byte[1] -eq 0xee -and $byte[2] -eq 0x28 )
 { Write-Output 'BOCU-1' }

 # 84 31 95 33 (GB-18030)
 elseif ($byte[0] -eq 0x84 -and $byte[1] -eq 0x31 -and $byte[2] -eq 0x95 -and $byte[3] -eq 0x33)
 { Write-Output 'GB-18030' }

 else
 { Write-Output 'ASCII' }
}

To use this function paste it to your profile.ps1 file or copy file on a folder and use this next line before use the function

use import-module .\Get-FileEncoding.ps1 

Then use it by something like

Get-Item *.log | select FullName, @{n='Encoding';e={Get-FileEncoding $_.FullName}}

You can download this file here