(PowerShell) Check if File Exists

Demonstrates how to check to see if a file exists.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example assumes the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$sftp = New-Object Chilkat.SFtp

# Connect to the SSH server.  
$hostname = "sftp.example.com"
$port = 22
$success = $sftp.Connect($hostname,$port)
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# Authenticate with the SSH server.  Chilkat SFTP supports
# both password-based authenication as well as public-key
# authentication.  This example uses password authenication.
$success = $sftp.AuthenticatePw("myLogin","myPassword")
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# After authenticating, the SFTP subsystem must be initialized:
$success = $sftp.InitializeSftp()
if ($success -ne $true) {
    $($sftp.LastErrorText)
    exit
}

# Check to see if a file exists

# The return value is one of the following values:
# -1: Unable to check. Examine the LastErrorText to determine the reason for failure.
# 0: File does not exist.
# 1: The regular file exists.
# 2: It exists, but it is a directory.
# 3: It exists, but it is a symlink (only possible if followLinks is false)
# 4: It exists, but it is a special filesystem entry type.
# 5: It exists, but it is an unkown filesystem entry type.
# 6: It exists, but it is an socket filesystem entry type.
# 7: It exists, but it is an char device entry type.
# 8: It exists, but it is an block device entry type.
# 9: It exists, but it is an FIFO entry type.

$followLinks = $true
$status = $sftp.FileExists("someDir/someFile.txt",$followLinks)
if ($status -lt 0) {
    $($sftp.LastErrorText)
    exit
}

$("status = " + $status)

$("Success")