color_select-string.ps1

filter ColorPattern( [string]$Pattern, [ConsoleColor]$Color, [switch]$SimpleMatch ) {
  if( $SimpleMatch ) { $Pattern = [regex]::Escape( $Pattern ) }

  $split = $_ -split $Pattern
  $found = [regex]::Matches( $_, $Pattern, 'IgnoreCase' )
  for( $i = 0; $i -lt $split.Count; ++$i ) {
    Write-Host $split[$i] -NoNewline
    Write-Host $found[$i] -NoNewline -ForegroundColor $Color
  }

  Write-Host
}

Select-String -Path 'Z:\PROJET\RM3\RC1\logRC1.txt' -Pattern '^ORA-' -Context 10,0 | ColorPattern 'ORA-\w*' 'Red'