(Tcl) Check if File Exists

Demonstrates how to check to see if a file exists.

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load ./chilkat.dll

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

set sftp [new_CkSFtp]

# Connect to the SSH server.  
set hostname "sftp.example.com"
set port 22
set success [CkSFtp_Connect $sftp $hostname $port]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# Authenticate with the SSH server.  Chilkat SFTP supports
# both password-based authenication as well as public-key
# authentication.  This example uses password authenication.
set success [CkSFtp_AuthenticatePw $sftp "myLogin" "myPassword"]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

# After authenticating, the SFTP subsystem must be initialized:
set success [CkSFtp_InitializeSftp $sftp]
if {$success != 1} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    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.

set followLinks 1
set status [CkSFtp_FileExists $sftp "someDir/someFile.txt" $followLinks]
if {$status < 0} then {
    puts [CkSFtp_lastErrorText $sftp]
    delete_CkSFtp $sftp
    exit
}

puts "status = $status"

puts "Success"

delete_CkSFtp $sftp