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Full Discussion: Script lock functionality
Top Forums Shell Programming and Scripting Script lock functionality Post 302882071 by mohanalakshmi on Saturday 4th of January 2014 06:13:37 AM
Old 01-04-2014
Script lock functionality

Hi All,

My requirement is i have a script A.sh .When a person A runs the script A.sh it should get locked and person B should not run the script.
i followed the below code

Code:
f_script_lock()
{
process=$1
user=`ps -ef | grep -i "$process"  | grep -i 'ksh' | awk '{print $1;}'` 
	 if [ ! -z $user ]; then
        echo "Recovery  is handled by $user. Hence cannot proceed in Recovery" 
	 exit
	 else
	 continue
	 fi
}

The above is working fine in normal conditions.
But when person A runs the query and press Ctrl+C intermitently the code stops running.
When person B or even person A tries to execute the A.sh again after sometime it says it has been accessed by the user and not able to execute.
Please help me on this.
 

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CUBRID_ERROR(3) 							 1							   CUBRID_ERROR(3)

cubrid_error - Get the error message

SYNOPSIS
string cubrid_error ([resource $connection]) DESCRIPTION
The cubrid_error(3) function is used to get the error message that occurred during the use of CUBRID API. Usually, it gets error message when API returns false as its return value. PARAMETERS
o $connection -The CUBRID connection. RETURN VALUES
Error message that occurred. EXAMPLES
Example #1 cubrid_error(3) example <?php $con = cubrid_connect('localhost', 33000, 'demodb', 'dba', ''); $req = cubrid_execute($con, "select id, name from person"); if ($req) { while (list ($id, $name) = cubrid_fetch($req)) echo $id, $name; } else { echo "Error Code: ", cubrid_errno($con); echo "Error Message: ", cubrid_error($con); } ?> The above example will output: Error Code: -493 Error Message: Syntax: Unknown class "person". select id, [name] from person SEE ALSO
cubrid_errno(3), cubrid_error_code(3), cubrid_error_msg(3). PHP Documentation Group CUBRID_ERROR(3)
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