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| $encoding = "ASCII"
[regex]$regex = "^\w\:\\"
foreach ($InputFile in $args) {
Write-Host "ReadFile : Processing $InputFile"
#Convert into complete path if not already done
$FilePath = ""
If ($regex.ismatch($InputFile)) {
$FilePath = $InputFile
}
ElseIf ($regex.ismatch($InputFile.fullname)) {
$FilePath = $InputFile.fullname
}
Else {
$FilePath = "$($pwd)\$InputFile"
}
$InputFile = Get-Item $FilePath
$FullName = $InputFile.FullName
try {
Write-Host "ReadFile : Reading $FullName"
Write-Host "ReadFile : Encoding $encoding"
# Open StreamReader
$reader = new-object System.IO.StreamReader($FullName,[System.Text.Encoding]::$encoding)
[int]$NbLines = 0
# Create empty hashtable
$hash = @{}
while ($reader.Peek() -ge 0) {
$NbLines++
# Read line
$line = $reader.ReadLine()
# Get first 13 characters
if ($line.length -ge 13) {
$key = $line.substring(0, 13)
# If hasn't been stored yet, add it to the hashtable and print it
# This ways only disctinct element will be printed
if(! $hash.ContainsKey($key)) {
$hash.add($key, 1)
Write-Output $key
}
}
}
Write-Host "ReadFile : $NbLines lines read"
}
catch [System.IO.IOException] {
Write-Host $_
}
finally {
if ($reader -ne $null) {
Write-Host "ReadFile : Dispose reader"
$reader.dispose()
$reader.close()
}
}
} |
