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Operating Systems HP-UX How to achieve Synchronization operation between two shells. Post 98599 by rajeeb_d on Thursday 9th of February 2006 11:27:58 AM
Old 02-09-2006
This is one way

You will have to modify the sub shell to create sephamore file in to let you know that the part of the process you wanted to be completed in the sub shell is done.

For eg. in the sub_shell.sh

statement 1
statement 2
statement 3
#suppose you want the parent shell to know that it has reached this state in the process
# Create the file

echo "PASSED" > passed.sep
statement 4
statement 5


Then in your parent shell

sub_shell.sh input_file.txt

while [ ! -s passed.sep ]
do
sleep 30


done

rm -f passed.sep

#######################

The sleep command takes seconds as input.

Let me know if it works!!!
 

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EXECUTE(7)                                                         SQL Commands                                                         EXECUTE(7)

NAME
EXECUTE - execute a prepared statement SYNOPSIS
EXECUTE name [ ( parameter [, ...] ) ] DESCRIPTION
EXECUTE is used to execute a previously prepared statement. Since prepared statements only exist for the duration of a session, the pre- pared statement must have been created by a PREPARE statement executed earlier in the current session. If the PREPARE statement that created the statement specified some parameters, a compatible set of parameters must be passed to the EXECUTE statement, or else an error is raised. Note that (unlike functions) prepared statements are not overloaded based on the type or number of their parameters; the name of a prepared statement must be unique within a database session. For more information on the creation and usage of prepared statements, see PREPARE [prepare(7)]. PARAMETERS
name The name of the prepared statement to execute. parameter The actual value of a parameter to the prepared statement. This must be an expression yielding a value that is compatible with the data type of this parameter, as was determined when the prepared statement was created. OUTPUTS
The command tag returned by EXECUTE is that of the prepared statement, and not EXECUTE. EXAMPLES
Examples are given in the Examples [prepare(7)] section of the PREPARE [prepare(7)] documentation. COMPATIBILITY
The SQL standard includes an EXECUTE statement, but it is only for use in embedded SQL. This version of the EXECUTE statement also uses a somewhat different syntax. SEE ALSO
DEALLOCATE [deallocate(7)], PREPARE [prepare(7)] SQL - Language Statements 2010-05-14 EXECUTE(7)
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