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Unix scripting problems


 
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# 1  
Old 09-23-2010
Unix scripting problems

Hi,
In my unix server, i received a file in /usr/data/xmit location. i want to write a unix script after file reached.
So how can i write a one line code which chceks the presence of the file? and second line line should take the status of the prevous line. like below.

Line 1: checks for the presence of file
Lein 2: STATUS=$?
# 2  
Old 09-23-2010
Code:
test -f /usr/dat/xmit/putyourfilenamehere
STATUS=$

# 3  
Old 09-24-2010
Thanks,
I hav one more question
in my application script, in the first line itself, below one line code is there
CONCAT_PARMS=$1\|$2\|$3\|$4
Can you tel me what it does?
# 4  
Old 09-24-2010
Quote:
Originally Posted by JSKOBS
Thanks,
I hav one more question
in my application script, in the first line itself, below one line code is there
CONCAT_PARMS=$1\|$2\|$3\|$4
Can you tel me what it does?
Try it out, place these lines in your script:
Code:
CONCAT_PARMS=$1\|$2\|$3\|$4 
echo $CONCAT_PARMS

and call your script with 4 parameters like:
Code:
./scriptname par1 par2 par3 par4

# 5  
Old 09-24-2010
Understood, Thnks
# 6  
Old 09-24-2010
Note that test -f file is successful only if file is a regular file, not a symbolic link.

Also, test -e file is successful for any file, even a symbolic link.

Also, test -s file is sometimes more helpful because it fails for empty (zero-length) files (but succeeds for symbolic links).

Rather than put the result in a variable with $?, the code might be easier to read if you do it in a structured way, like this:
Code:
if [ -s /usr/dat/xmit/file ]; then
    # Do your processing here
fi

Note that the bracket, [, is the same as test.
# 7  
Old 10-04-2010
Relates to FTP

Thnks to all.
I have one problem in my script.
in my script, i have below line of FTP code:
Code:
ftp -nv $server > $logfile <<END
 user $id $pwd
 put $fil1 $fil2
 bye
END

While i try to execute my script, it showing error like:
Code:
220  FTP server ready.
331 Password required for admin.
530 Login incorrect.
Login failed.
530 Please login with USER and PASS.
530 Please login with USER and PASS.
221 Goodbye.
$

If i give each line individually lik below,
Code:
$ ftp -nv $server
$ user $id $pwd

then FTP is happening corectly. Can anyone plz tel me wats wrong in my first FTp step by which im unable to connect?

Last edited by Scott; 10-04-2010 at 11:49 AM.. Reason: Please use code tags

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