Shell Programming and Scripting

Hi all,

I am new to UNIX Scripting. I would like to know how to check whether file is exist in remote server. I have google, but cannot find any solution that works.

Currently my code is like this:
if [ -f "ssh userid@remotehost 'ls /home/batch/sample.txt'" ]; then
echo 'data file exist'
else
echo 'data file not exist'
fi

Thanks in advance...

I'm not sure if you can do that, i might be wrong.
Another way to do this is to download the file through sftp and check the exit code

Disclaimer: My point of reference is bash script.

As far as I know ssh doesn't send back return codes for scripts you execute remotely so your logic is a bit flawed there. Your test (if) is testing the ssh connection, I believe, so as long as you can ssh you'll test true. When you execute a command remotely with ssh you get back whatever is returned by the command so you need to execute a script on the remote server that looks for the file and returns what you want or just do it in a one-liner.

Code:

ssh user@remote 'if [ -f /home/batch/sample.txt ]; then echo "data file exists"; else echo "data file does not exist"; fi'

Thanks mglenney... it works!!