RE: Unix script question

You can also do a find filename -size 0. If you return the filename, the file has zero blocks.

Ron Smith
Database Administration
rlsmith_at_kmg.com

-----Original Message-----
From: Roy Ferguson [mailto:rferguso_at_level1.com] Sent: Wednesday, January 31, 2001 1:48 PM To: Multiple recipients of list ORACLE-L Subject: Unix script question

I am looking to resolve an issue we have with a particular script.

using a unix script, I need to determine if a file exists and if the size of the
file is zero bytes. using ftp, we put a file a file on a server then we use get
to retreive the same file back. we do this to ensure that the file has been sent
successfully. once the file is gotten back, using get, we compare the original
file to the get file. we then use if to see if the file was successfully send
and received back. if the file is not gotten back, we email the necessary people of the error. if the files are different sizes, we email the necessary
people that the file sizes do not match and that the ftp process needs to be

done again. all of the above steps work fine.

the issue we face is when we ftp a zero byte file and receive the same file back
the if statement we're using sees the zero byte file as none existant and therefore an email is sent saying that the ftp process failed when in fact it
didn't. it just sent and received a zero byte file. a zero byte file is not a
failed process.

finally...the question...

can a unix scripting guru assist me in the code that checks if a file is a zero
byte file?

thanks in advance...Roy

below is the current portion of the script that checks for errors:

put file1 'file1'
get 'file1' check_file
bye
!EOF
# First if statement will check to see if the check file exists

if test ! -s "check_file"

   then

# if the file does not exist, send the failed message and exit the program

  echo Failed to pull a check file back from the FTP   echodo /usr/ucb/mail -s ftp_of_file1.FAILED `cat $EMAIL/fail.list` < $EMAIL/fail.msg

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Author: Roy Ferguson
  INET: rferguso_at_level1.com

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