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Exits from putty instead of shell script

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# 1  
Old 02-04-2011
Exits from putty instead of shell script
Dear,

I have written below code to initiate the log at top of my script.
Code:
#Set the log file
LOGFILE=<path>/<filename.log>
exec > $LOGFILE 2>&1
...............
....
...
..
............
echo -e  "\n\n Script finished OK " `date "+%m/%d/%y %H:%M:%S" ` "\n\n"
exit 0

the logging ends only after giving 'exit 0' in the bottom, but this 'exit 0' also terminates and closes the unix session, but my need is to have the control in next command prompt.

Pls advice.
Last edited by Franklin52; 02-04-2011 at 03:17 AM.. Reason: Please use code tags
# 2  
Old 02-04-2011
I believe this happens when you source the script.

if you run:
Code:
. /path/to/my/script

It will close the session.

If you run:
Code:
/path/to/my/script

It should work.

Notice the 'dot''space' in the first example. Let us know if this is the case.

Now, if this is a subscript, being called from a master script, simply take the exit out.
# 3  
Old 02-04-2011
Quote:
exec > $LOGFILE 2>&1
Doesn't "exec" start a new Shell?
Anyway, what output do you want to go into $LOGFILE ? There should be an alternative technique without using "exec".


What Operating System and Shell is this:
Code:
uname -a
echo $SHELL

# 4  
Old 02-07-2011
Dear thx for ur reply.

exec does not start a new shell, but if i dont give exit 0 at the bottom it hangs (logs including the new promt)

Code:
$ uname -a
Linux jasmine 2.6.16.60-0.54.5-smp #1 SMP Fri Sep 4 01:28:03 UTC 2009 x86_64 x86_64 x86_64 GNU/Linux
$ echo $SHELL
/bin/bash

Yes i run using dot & space. it is individual program(but no problem when run via master program bcos master pgm run diff machine), i am just logging echo stuffs and other for debugging purpose.

Thanks
Imran
# 5  
Old 02-07-2011
If you still need help, post all the programs you are using and how you are running them.
# 6  
Old 02-07-2011
Quote:
Originally Posted by Imran_Chennai
...
Code:
$ uname -a
Linux jasmine 2.6.16.60-0.54.5-smp #1 SMP Fri Sep 4 01:28:03 UTC 2009 x86_64 x86_64 x86_64 GNU/Linux
$ echo $SHELL
/bin/bash

Yes i run using dot & space. it is individual program(but no problem when run via master program bcos master pgm run diff machine), i am just logging echo stuffs and other for debugging purpose.
...
Try using "return" with dot notation -

Code:
$
$
$ cat -n f8.sh
     1  #!/usr/bin/bash
     2  echo "Hello, World!"
     3  return 1
$
$ # The following prints "Hello, World!", and returns control to the
$ # shell prompt with exit status 1
$
$ . f8.sh
Hello, World!
$
$ echo $?
1
$
$

tyler_durden
# 7  
Old 02-08-2011
Hi,

The 'return' also leads to hang, and but log is ok including 4 prompt lines at the end.

Is there any alternate way to establish log without exec & exit.

I am using this logic for 4 inividual scripts (bash) that runs daily, two of them are for sqlldr and others calling SP., I have to login putty 4 time to accomplish this.

Thanks
Imran
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