checking for files on ftp...


 
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# 1  
Old 06-22-2007
checking for files on ftp...

I have automated my ftp session as given in on of the previous threads as:
#! /usr/bin/ksh

HOST=remote.host.name
USER=whoever
PASSWD=whatever

exec 4>&1
ftp -nv >&4 2>&4 |&

print -p open $HOST
print -p user $USER $PASSWD
print -p cd directory
print -p binary
print -p get xyz

wait
exit 0

the problem is i want to check which one of the two files :xyz, abc exist on the server and then get that file.
So how do i use a conditional statement in this case??
# 2  
Old 06-22-2007
Not an easy task.

I have tried doing something like this in the past. In-order to make decisions like "Is there room on the remote server for this file, if not make room" kinda stuff with ftp. I used expect and had expect use ftp.

The solution I found was using a program called expect.
http://expect.nist.gov/

I embedded it directly in my script(bash) like this:

Quote:
/usr/bin/expect - << EOF
expect commands using ftp here
EOF

I hope this helps : )

Edit:
Quote:
Here is an expect script from expects website with an example of using ftp: http://expect.nist.gov/scripts/riftp

Last edited by harmonwood; 06-22-2007 at 12:42 PM.. Reason: added link
# 3  
Old 06-22-2007
Get both files.
FTP will not die if the source file does not exist.
Put the received files into an empty directory, so that there is no mistaking that only one file exists on the server.
# 4  
Old 06-22-2007
chalk one up for keep'n it simple.
 
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