asked on

ftp -i -n -v 2>$ftp_message_file 1>&2 <<EOF

I am trying to understand a ftp script. Does this mean that the output of 1 is being directed to 2 and does this mean that if no file is retrieve from the FTP session the script ends with status 16?

ftp -i -n -v 2>$ftp_message_file 1>&2 <<EOF
open $NODE
user $USER $PASS
cd $DIRECTORY
binary
get $FILE $FILE
del $FILE $FILE
bye
EOF
}
#
BASENAME=`basename $0`
if [ $# -ne 2 ]
then
echo "$BASENAME: usage $BASENAME <file_to_transfer> <directory>"
echo
echo "$BASENAME called with invalid number of parameters"
echo "Processing Abnormally Terminated"
exit 16
fi

Thanks for the assistance

ASKER CERTIFIED SOLUTION

mnh

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omarfarid

Is this the complete script? I think something is missing or it has a syntax error with } after EOF

The script checks if it was called with two arguments and if not it exits with error code 16.

MURUGESAN N

As per the given statements, I feel that the following statements comes at the end of a function inside a script:
bye
EOF
}
#

If the 2 parameters are not passed to the script it will display the following in the output:
ScriptName: usage ScriptName <file_to_transfer> <directory>
ScriptName called with invalid number of parameters
Processing Abnormally Terminated

Then the script is returning with the return code as "16".

The script will not return 16 if no file is present in the directory from the FTP session.

To get the error information from ftp function
Replace:
bye
EOF
}
#
With:
bye
EOF
grep -w "226" $ftp_message_file
if [ $? -eq 0 ]
then
echo "Successfull"
else
echo failure. Look into the file $ftp_message_file
fi
}
#
OR
With:
bye
EOF
grep -w "226" $ftp_message_file
if [ $? -eq 0 ]
then
echo "Successfull"
else
echo failure. Look into the file $ftp_message_file
exit anyNumberYouWish
fi
}
#

MURUGESAN N

In the given replacements
the following line:
grep -w "226" $ftp_message_file
can be replaced with:
grep -w "226" $ftp_message_file > /dev/null 2>/dev/null

bje

ASKER

So, the script will fail, if it does not pick up a file, correct? The parameters the script is looking for is the file it is picking up?

Thank you for your help.

mnh

Hi,

The parameters the script is looking for are:
1) file_to_transfer
2) directory

If you don't specify both parameters, the script fill fail.

Regards,
-- mnh

bje

ASKER

Thanks. This helps

bje

ftp -i -n -v 2&gt;$ftp_message_file 1&gt;&amp;2 &lt;&lt;EOF

ftp -i -n -v 2>$ftp_message_file 1>&2 <<EOF