Shell Programming and Scripting

Hi,
I am trying to get a file from Windows NT to Unix through my FTP code in unix. There will be only one file every week on NT server.

I have a situation something like below:

If the file does not exists on NT server
then
run script1.sh (in unix box)

ELSE

If the file exists on the NT server
then
ftp the file on unix box (My FTP script will run)
then check if the file has only one column
and
then run script2.sh....

Is there a way to check if the file exists on the NT server through unix shell script. Does the unix FTP script returns any error code that I can use if it doesn't find the file...
Also, is there a way to check inside the script if the file has only one column.



I will really appreciate any advice/help in this regards....

Thanks
Raj

The way I have always done that is to save the ftp output into a variable as such:

Code:

FTP_OUTPUT="`ftp -in 192.168.0.1 <<EOF
user username pass
ascii
get file.txt
bye
EOF`"

echo $FTP_OUTPUT | grep -i "file not found"

You would want to manually test to see what the ftp server outputs when the file is not found. Then you would build your grep based on that.

Thanks Dangral for the quick reply. This works.....

Is there a way to check if the ftp file has only one column in the file with pipe delimition.

Thanks again for your time and help...

...Raj

Code:

c=`awk -F"|" '{ print NF }' file1`
if test $c -gt 1
then
   echo "More than one field"
fi

Hi,

c=`awk -F"|" '{ print NF }' file1`
if test $c -gt 1
then
echo "More than one field"
fi

In The statement above: The awk command always returns 2 (more than 1).
My file looks something like:
05211_71_014|
C05226|
C05010_05|
C210_61_098|
C05202_02_022|

Any thoughts what might be wrong in the above statement.

Thanks in advance....
...Raj

That's right, the awk command actually will check for the number of delimiters that are present in the line and print the number of fields as <number of delimiters> + 1.

i.e.

this|line|has|five|fields : NF will be five, 'cause there are four '|'s
this|line|has|four : NF is four, but
|this|line|has|five and
this|has|five|too| : for these two lines, since you have four '|'s, you get five fields.

Hope this clears things up.

There is nothing wrong with the statement, by virtue of the fact that there is a | in the line it has two fields, just that the second field is empty, what you should really be doing is checking to see if there are more than two fields.