Error Levels in Batch Scripting

BobTheBeat

Hey guys. I wonder could anyone help me...
Using DOS batch scripts, I am running an automated FTP transfer, which pulls a file from a remote location every few hours or so.
Thing is, I want to be able to 'catch' the errors as they come (like you would in any good OO language!I know though, that Batch programming is not suited to this. :rolleyes:
For example, a simple 'destination host unreachable' is a common ftp error and its really the only error I would like to deal with in the script. How would I check for an unsuccessful command, in the script? Further more, how do I execute a branching statement from it? Can it even be done??!!

Any help would be appreciated...

Hobbes

Read up on ERRORLEVEL. Your program has to support the ERRORLEVEL Command.

Also you scan from the highest (afair). So something like..

if ERRORLEVEL == 2 goto label2
if ERRORLEVEL == 1 goto label1

That will work, but if you reverse the lines it wont. You can put labels into batch files by preceeding the label with a colon ( : ).

BobTheBeat

Comments are much appreciated!;) But, to be a bit more specific, If I wanted to audit the success of an ftp transfer through a script how would I go about doing so?
I am thinking I could set a flag within the FTP script in question, like

FTP etc.etc.ie
user blah
blah
LCD f:/etc/etc/etc
PUT etc
DISCONNECT
BYE

Could I set a flag at any point in the above, depending on whether the command was a success>?