FILECOMPARETO Compare file size and time/date stamp to a remote site |
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This command compares the size and date/time stamp of a specified local file with a file of the same name in the current directory on a remote site.
The results of the comparison are saved in two internal script variables: size result is saved in %comparesize and date/time result is saved in %comparedate. These variables may then be tested using the IFSIZE and IFDATE commands respectively. (Do not use the IFERROR command.)
Consider the following example where a specified local file is compared to a correspondingly named file on the site and a conditional branch is taken if the file on the remote site is larger than the local file.
FILECOMPARETO "local_file" IFSIZE $ERROR_SRVR_FILE_LARGER goto save_this_file
If you are not using the TIMEZONE script command, you may specify the /tz option to account for differences in timezones between Robo-FTP and the remote site. This is important for accurate file date and time stamp comparisons. For example, if you are using Robo-FTP in the Central U.S. timezone and the site is located in the Eastern U.S. timezone there is a one-hour difference between the file system times of Robo-FTP’s PC and the site. To allow for this in the FILECOMPARETO command, the command would look like the following which indicates that the site is one hour ahead:
FILECOMPARETO "localfile" /tz=+1
Further, if the remote site is located in the Pacific U.S. timezone there is a two-hour difference the other way between the file system times of Robo-FTP’s PC and the site. To allow for this, the command would look like the following which indicates that the remote site is two hours behind:
FILECOMPARETO "localfile" /tz=-2
Important The success of this command depends on Robo-FTP's ability to automatically read and understand the directory listings returned by the remote site. It is not uncommon for HTTP/HTTPS sites to fail to return any directory listings or to return listings in an unsupported format. Contact technical support if you have an urgent need related to a directory listing format that is currently unsupported.
Related Command(s): IFSIZE, IFDATE, FILECOMPAREFROM See also: Comparing Local and FTP Site Files |