RE: Unix script question

Erm.... you have done it on your own.

At the foot of your script where you check for the file existing, you have a ! -s. This checks that the file exists and is 0 bytes. If you did not have the ! character the statement would check that the file exists and has a size greater than 0.

-----Original Message-----
Sent: 01 February 2001 16:27
To: Multiple recipients of list ORACLE-L

check the man page;
$ man test

> -----Original Message-----
> From: root_at_fatcity.com [mailto:root_at_fatcity.com]On Behalf Of Roy
> Ferguson
> Sent: Wednesday, January 31, 2001 2:48 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
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Roy Ferguson
> INET: rferguso_at_level1.com
>
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