Solved

How to trap FTP error

Posted on 2011-09-06
8
385 Views
Last Modified: 2013-11-29
Dear Experts,

I have the following script. It set as a cron job. It works fine if the file is present on the server, but if it is not, the script hangs.
How can I trap the failure and then exit from the script?
0
Comment
Question by:sfuk
8 Comments
 
LVL 15

Expert Comment

by:WalkaboutTigger
ID: 36491399
do an ls on the ftp server then perform a find or grep on "abc" or some known substring within the filename.
If no lines are returned, the file does not exist.
0
 

Author Comment

by:sfuk
ID: 36491446
Thank you, WalkaboutTigger, for your quick response.

When i open ftp process, can I do something like

echo `ls -l abc*` > abc.log
0
 

Author Comment

by:sfuk
ID: 36492515
I made the following changes/additions in my initial script and solved the problem.


#! /bin/bash

v_rundir="/home/abc"
v_ftp=`cat ftp.log | grep "not found" | wc -l`
cd $v_rundir
 
rm ftp.log

# Test to see if this process is already running...
if [ -e process.lck ] ; then   # if it is, then exit...
 exit
fi
echo $$ > process.lck     # otherwise, lock this process from duplicated execution...

#FTP Function
# Get the new pgp files...
sftp username@ftp4.server.com <<EOF >>/home/abc/ftp.log 2>&1
cd abc/Toabc
mget abc*.txt.pgp
rm abc*.txt.pgp
quit
EOF
if [ $v_ftp -ne "0" ]; then
rm process.lck
exit 1 
fi
exit

Open in new window

0
 
LVL 34

Accepted Solution

by:
Duncan Roe earned 500 total points
ID: 36509767
Rather than run ftp with a here document, you have far more control if you drive it via expect. Picking up errors becomes almost a no-brainer. If you are interested, I can post an example or 2.
0
 
LVL 53

Expert Comment

by:Dhaest
ID: 36947343
This question has been classified as abandoned and is closed as part of the Cleanup Program. See the recommendation for more details.
0

Featured Post

What is SQL Server and how does it work?

The purpose of this paper is to provide you background on SQL Server. It’s your self-study guide for learning fundamentals. It includes both the history of SQL and its technical basics. Concepts and definitions will form the solid foundation of your future DBA expertise.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This is the first one of a series of articles I’ll be writing to address technical issues that are always referred to as network problems. The network boundaries have changed, therefore having an understanding of how each piece in the network  puzzl…
Join Greg Farro and Ethan Banks from Packet Pushers (http://packetpushers.net/podcast/podcasts/pq-show-93-smart-network-monitoring-paessler-sponsored/) and Greg Ross from Paessler (https://www.paessler.com/prtg) for a discussion about smart network …
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

18 Experts available now in Live!

Get 1:1 Help Now