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Full Discussion: How to handle errors and warnings
Top Forums Shell Programming and Scripting How to handle errors and warnings Post 302463919 by stunnerz_84 on Monday 18th of October 2010 08:31:44 PM
Old 10-18-2010
How to handle errors and warnings
Hi Guys,
I am working on a shell script(main script) where in i have to call another script B and pass parameter to that script. I see that the shell script that is being called in the main script is throwing warnings/fatal errors. So i am just wondering how do i capture these and ask the script to exit when there are any warnings/fatal errors.
FYI...i am calling this script B three times in the main script...once for retrieving (parameter 1)the data, then for update(paramter 2) and then for storing(paramter 3) the data. If there are warnings/errors in any of these steps, they should be captured and the script should exit instead of going further.

Thanks in advance!!
 

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LEARN ABOUT OPENSOLARIS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a    Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.11							    30 Jan 2004 							 script(1)
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