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Top Forums UNIX for Dummies Questions & Answers Menu function stuck in a loop? Post 11942 by Perderabo on Friday 14th of December 2001 11:53:17 AM
Old 12-14-2001
Re: Menu function stuck in a loop?

Quote:
Originally posted by darthur


exec < $QL_LOG2
while read line ; do
echo 'delete qlocal('${line}')' >>$QL_LOG3
done

cleanupmenu
With that exec statement you set the script's standard-in to a file. Then with that loop you read all the data. At this point, standard-in is at end-of-file. Then you call cleanupmenu which contains a read statement. That read statement will try to read one more line from the $QL_LOG2 file but it won't succeed. You need to add
exec < /dev/tty
before you invoke cleanupmenu to put standard-in back to being the tty.
 

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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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