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Need a Shell Script for FTP

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# 1  
Old 11-17-2014
Need a Shell Script for FTP
Hello Brothers,

I am new in shell script.I need a shell script that will run in Linux Server. Script will connect to windows FTP server before connection script will check the connection from linux server to windows server, if connection is ok then show a message and get specific file and compare the local and remote file size if file size is perfect than dispaly successful message. If connection fails or file size is differ display a error message.


Thanks
Maruf
# 2  
Old 11-17-2014
What have you tried?

FTP is very simple and stupid. You may end up connecting and quitting to check, connecting and retrieving a file and quitting to retrieve a file and compare it locally, since ftp has no "if" itself, it will all be done in the shell.
# 3  
Old 11-17-2014
Need a Shell Script for FTP
Hi,

Could you please sample script for that? I only know about the simple ftp commands that only bring the file from one server to another. I cant check file size also connection.

Please help.

Thanks
# 4  
Old 11-17-2014
What have you tried?
# 5  
Old 11-17-2014
Need a Shell Script for FTP
Hi,

I have tried below

Code:
HOST=''
ftpuser=''
ftppass=''
FILE='XXXX.*'
SrcDir='G:\KKKK.*'
DstDi='/tmp/'
NOW=$(date +"%m-%d-%Y")
ftp -nvd $HOST << EOF >/tmp/ftp.$NOW.log
quote USER $ftpuser 
quote PASS $ftppass
hash
prompt off
cd $DstDi
lcd $SrcDir
bin
mget $FILE
rm -f $FILE
bye
EOF

Thanks
This User Gave Thanks to maruf For This Post:
Corona688
# 6  
Old 11-17-2014
So:

Code:
# Check if you can connect.
ftp -nvd $HOST <<EOF
quote user $ftpuser
quote pass $ftppass
hash
prompt off
cd $DstDi
ls $FILE
EOF

if [ "$?" -ne 0 ]
then
        echo "Couldn't connect" >&2
        exit
fi

# Get the remote file
ftp -nvd $HOST << EOF >/tmp/ftp.$NOW.log
quote USER $ftpuser 
quote PASS $ftppass
hash
prompt off
cd $DstDi
lcd $SrcDir
bin
get $FILE $FILE.tmp
bye
EOF

if [ "$?" -ne 0 ]
then
        echo "Couldn't retrieve $FILE" >&2
        exit
fi

if [ "$(wc -l "${DstDir}/$FILE")" -ne "$(wc -l "${DstDir}/$FILE.tmp")" ]
then
        echo "Sizes of original and new file differ" >&2
        exit
fi

echo "Retrieved new file into ${DstDir}/$FILE.tmp" >&2

# 7  
Old 11-17-2014
Need a Shell Script for FTP
Hi,

What does this portion do? specially "echo "Couldn't connect" >&2" line
Code:
if [ "$?" -ne 0 ]
then
        echo "Couldn't connect" >&2
        exit
fi

Thanks
Last edited by vbe; 11-17-2014 at 12:13 PM..
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