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Script Library

Sample scripts are provided as-is with no warranty of fitness for a particular purpose. These scripts are solely intended to demonstrate techniques for accomplishing common tasks. Additional script logic and error-handling may need to be added to achieve the desired results in your specific environment.


download_new_files.s

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This script uses FTPDIFF, and FTPGETDIFF to check a remote site for files which have changed since the last time you checked.


  1  * Log onto the FTP site.
  2  FTPLOGON 'site.remote'
  3  IFERROR RETURN
  4  
  5  * Change the current directory on the server
  6  FTPCD 'outgoing'
  7  IFERROR RETURN 
  8  
  9  * Check the site for changes.
 10  FTPDIFF "*" "ftpsnapshot_test.sql" /append 
 11  IFERROR RETURN
 12  
 13  :do_getdiff
 14  * Check the next difference, and remove the last one from the db
 15  FTPGETDIFF "ftpsnapshot_test.sql" /commitlast  
 16  * An EOF error indicates that all files have been downloaded;
 17  IFERROR RETURN $ERROR_SUCCESS
 18  
 19  * if the difference is $DIFF_FILE_NOT_FOUND skip this file 
 20  * and go back to the top of the loop
 21  IFNUM= %ftpdifffileid $DIFF_FILE_NOT_FOUND GOTO do_getdiff 
 22  
 23  * the other difference types indicate that the site file is new or has changed, 
 24  * so let's download it
 25  RCVFILE %ftpdifffilename
 26  IFERROR RETURN
 27  GOTO do_getdiff

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