powershell read write file

file.ps1

$filePath = "test.txt"


# write append to file
echo 'halloo' >> $filePath

# write empty file
echo $null > $filePath


# read file into variable
$content = "";
try {
  $content = [IO.File]::ReadAllText($filePath)
} catch [System.Exception] {
  Write-Host "File missing"
}

$content.Length
if ( $content.Length ) { Write-Host "not empty" }

# delete file
rm $filePath