UNIX for Dummies Questions & Answers

Hello,

I have a script that uploads a file from local to remote place using ftp. The problem is that, if on remote host there is a file called the same as the one I want to upload, the ftp program overrides that file. But I don't want to override nothing (even if the remote file is older, smaller or whatever).
The problem is that I can't test if a file exist on remote (doing [ filename ]) because ftp only allows me limited commands (like ls, mkdir, cd, etc.)

So, how can I check if the file i want to upload already exists, so I can skip overriding ?
Notes :
- Using sunique feature isn't a solution. I don't want to copy nothing if it's there already.
- Maybe using other ftp programs might help, but what programs ?


Thx,
Adrian

Just type a ? in ftp terminal you will get list of all commands

Here is the toggle switch for interactive mode on/off

Code:

prompt

Number of software are available for ftp
Filezilla => filezilla-project.org
WS_FTP => ipswitch.com
also you can access the same through simply windows explorer putting the ftp site address! ftp://192.168.0.10/

I already knew that, the question was : How to avoid overriding (which is equivalent to test if a file on remote exists)

I wanted command line tools ( I've said I am using a script).

Please answer to the question specifically.

Using ftp alone it will have to be a two-stage process with two distinct ftp runs.
1) Use ftp "dir" to list the entire remote directory to a local file. This is easier than looking for the specific file because we don't want a ftp failure.
2) Test stored directory listing and send new file with ftp if file did not exist.