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Jan 13, 2008

DOS Batch - FTP Scripts

File Transfer with FTP, One-File Solution.

Classic FTP
Executing a FTP script.
DOS Batch FTP - Simple
FTP script and batch in a single file.
DOS Batch FTP - Using Variables
Creating FTP script on the fly at runtime and using variables within the FTP script.
DOS Batch FTP - Get New Files Only
Ftp script to download only files that don`t exist in local folder, i.e. to avoid overwrite
TOP
2008-01-01

Classic FTP - Executing a FTP script

Description:

The FTP command support the "-s:ftpscript.txt" option. The FTP commands listed in ftpscript.txt will automatically run after FTP starts. The FTP command can be started from a batch file.

Example:
  • FTP -v -i -s:ftpscript.txt
See also command line help: "C:>ftp -?"
Script:
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 open example.com
username
password
!:--- FTP commands below here ---
lcd c:\MyLocalDirectory
cd  public_html/MyRemoteDirectory
binary
mput "*.*"
disconnect
bye
Script Output:
 DOS Script Ouput 
ftp> open example.com
User (Username:(none)):

ftp> !:--- FTP commands below here ---
ftp> lcd c:\MyLocalDirectory
Local directory now c:\MyLocalDirectory.
ftp> cd  public_html/MyRemoteDirectory
ftp> binary
ftp> !: mput "*.*"
ftp> disconnect
ftp> bye
TOP
2008-01-01

DOS Batch FTP - Simple - FTP script and batch in a single file

Description:

Embed FTP script into a batch script. Add this line at the beginning of the FTP script:

@ftp -i -s:"%~f0"&GOTO:EOF

The "FTP -s:ftpscript.txt" option executes a FTP script wheres "%~f0" resolved to the name of the running batch file. "GOTO:EOF" ends the batch script and makes sure the FTP script doesn`t run as part of the batch.
Good: You end up with only one file that contains the batch script and the FTP script combined.
Minor flaw: The batch command in the first line causes an "Invalid command." error when executed in FTP context, however the FTP execution will continue.

Features:
  • Single file to distribute combining batch and FTP script
Script:
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 @ftp -i -s:"%~f0"&GOTO:EOF
open example.com
username
password
!:--- FTP commands below here ---
lcd c:\MyLocalDirectory
cd  public_html/MyRemoteDirectory
binary
mput "*.*"
disconnect
bye
Script Output:
 DOS Script Ouput 
ftp> @ftp -i -s:"%~f0"&GOTO:EOF
Invalid command.
ftp> open example.com
User (Username:(none)):

ftp> !:--- FTP commands below here ---
ftp> lcd c:\MyLocalDirectory
Local directory now c:\MyLocalDirectory.
ftp> cd  public_html/MyRemoteDirectory
ftp> binary
ftp> !: mput "*.*"
ftp> disconnect
ftp> bye
TOP
2008-10-17

DOS Batch FTP - Using Variables - Creating FTP script on the fly at runtime and using variables within the FTP script

Description:

This batch executed the FTP script embedded within the batch. All variables in the FTP script will be resolved.

The FOR loop extracts the FTP script into a temporary file. It the ECHO command is being CALLed for each line in order to resolve the variables.

Variables can be used within the FTP script the same way as in a batch script, including any string manipulation and command line arguments like %1 %2 %~n0 %* and so on.

All batch lines start with semicolon so that they will be ignored by the FOR loop. Semicolon is the default end-of-line (EOL) character used by the FOR command.

Script:
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 ;@echo off
;(for /f "usebackq delims=" %%A in ("%~f0") do call echo.%%A)>"%temp%\%~n0.ftp"
;ftp -i -s:"%temp%\%~n0.ftp"
;GOTO:EOF

open example.com
username
password
!:--- FTP commands below here ---
cd public_html/%COMPUTERNAME%
binary
hash on
%*
disconnect
bye
TOP
2008-12-04

DOS Batch FTP - Get New Files Only - Ftp script to download only files that don`t exist in local folder, i.e. to avoid overwrite

Description:
This batch connects twice to the FTP server. First time it retrieves a list of files on the FTP server. This list is being trimmed to contain only files that don`t already exist locally. The files in the trimmed list are then downloaded during a second connection.

Note: Since all files are passed into the FTP`s MGET command there might be a limit to the number of files that can be processed at once.

Script:
Download: BatchFtpGetNewFilesOnly.bat  
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 @Echo Off

REM -- Define File Filter, i.e. files with extension .txt
Set FindStrArgs=/E /C:".txt"

REM -- Extract Ftp Script to create List of Files
Set "FtpCommand=ls"
Call:extractFileSection "[Ftp Script 1]" "-">"%temp%\%~n0.ftp"
Rem Notepad "%temp%\%~n0.ftp"

REM -- Execute Ftp Script, collect File Names
Set "FileList="
For /F "Delims=" %%A In ('"Ftp -v -i -s:"%temp%\%~n0.ftp"|Findstr %FindStrArgs%"') Do (
    Call Set "FileList=%%FileList%% "%%A""
)

REM -- Extract Ftp Script to download files that don't exist in local folder
Set "FtpCommand=mget"
For %%A In (%FileList%) Do If Not Exist "%%~A" Call Set "FtpCommand=%%FtpCommand%% "%%~A""
Call:extractFileSection "[Ftp Script 1]" "-">"%temp%\%~n0.ftp"
Rem Notepad "%temp%\%~n0.ftp"

For %%A In (%FtpCommand%) Do Echo.%%A

REM -- Execute Ftp Script, download files
ftp -i -s:"%temp%\%~n0.ftp"
Del "%temp%\%~n0.ftp"
GOTO:EOF


:extractFileSection StartMark EndMark FileName -- extract a section of file that is defined by a start and end mark
::                  -- [IN]     StartMark - start mark, use '...:S' mark to allow variable substitution
::                  -- [IN,OPT] EndMark   - optional end mark, default is first empty line
::                  -- [IN,OPT] FileName  - optional source file, default is THIS file
:$created 20080219 :$changed 20081204 :$categories ReadFile
:$source http://www.dostips.com
SETLOCAL
set "bmk=%~1"
set "emk=%~2"
set "src=%~3"
set "bExtr="
set "bSubs="
if "%src%"=="" set src=%~f0&        rem if no source file then assume THIS file
for /f "tokens=1,* delims=]" %%A in ('find /n /v "" "%src%"') do (
    if /i "%%B"=="%emk%" set "bExtr="&set "bSubs="
    if defined bExtr if defined bSubs (call echo.%%B) ELSE (echo.%%B)
    if /i "%%B"=="%bmk%"   set "bExtr=Y"
    if /i "%%B"=="%bmk%:S" set "bExtr=Y"&set "bSubs=Y"
)
EXIT /b


[Ftp Script 1]:S
!Title Connecting...
open example.com
username
password

!Title Preparing...
cd public_html/MyRemoteDirectory
lcd c:\MyLocalDirectory
binary
hash

!Title Processing... %FtpCommand%
%FtpCommand%

!Title Disconnecting...
disconnect
bye